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Definition1
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Definition2
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standard deviation
computed measure of how much scores vary around the mean score (ex: pg 59)
better measure of how scores deviate from one another, how scores differ from the mean
1
0
standard deviation
measure of how much all scores tend to vary from the sample mean. s=√Σ(x-m)/n
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
2
1
standard deviation
represent the typical distance a score is from the mean; used for interval/ratio data only.
measures the average distance from the mean
2
1
standard deviation
a measure of how spread out numbers are. allows a &"standard&" way to know what is &"normal&" in a data set.
a measure of how spread out the data are (that involves using the mean and a variety of calculations)
3
1
standard deviation
a statistical measure that shows the average amount that values vary (aka &"dispersion&") from the mean.
the most widely used measure of dispersion, it represents the average amount of variation around the mean
2
1
standard deviation
typical divergence away from the mean
measures the variability in a set of data - shows, on average, how far away the data values are from the mean
3
1
standard deviation
-measure of the average deviation (units) of each score from the mean -square root of variance
measure of how much all scores tend to vary from the sample mean. the square root of the average squared deviation from the mean
2
1
standard deviation
the square root of the variance standard deviation = variance ^2
is calculated, very simply, as the square root of the variance, as shown in figure 3-5.
3
1
standard deviation
the measure of the approximate average amount scores in a distribution deviate from the mean. distribution with a larger standard deviation have more spread.
measure of dispersion around the mean for normally distributed continuous data; expresses variability within the sample
2
1
standard deviation
measures the average difference between each score in the mean of the data set
a measure of how far a piece of data is away from the average.
3
1
standard deviation
the square root of variance; a computed measure of how far data values are from their mean
this is a measure of dispersion that calculates the square root of the variance.
1
0
standard deviation
measure of dispersion centered around a mean. two types 1) continuous: generally steady progression and 2) discrete: attributes are separate from one another
a summarization of values around the mean. within a normal distribution, approximately 68% and 95% fall within + or - 1 or 2 standard deviation points respectively.
1
0
standard deviation
a measure of variability that describes an average distance of every score from the mean (normal distribution)
- measure of average distance from the mean - most frequently used measure of variability
1
0
standard deviation
measures the average difference between each score in the mean of the data set
average amount all scores varied from the mean; most important statistic for organizing data
0
0
standard deviation
a measure of variability that describes an average distance of every score from the mean the larger the sd, the more variable the scores
variability or dispersion of scores around the mean, represented by &"s&"
1
0
standard deviation
the square root of the variance (s) provides a measure of the standard/average, distance from the mean always 0 or a positive number
measure of variability that describes the average distance from the mean; obtained by taking the square root of the variance
1
0
standard deviation
a computed measure of how much scores vary around the mean score. with more accurate technology, bump in deviation can go from large to incredibly thin minimizing average error.
associated with precision measure of the actual spread in the data set, how much data differs from one another
3
1
standard deviation
a measure of variation that describes how the data deviates from the mean of the data.
precision estimate of how deviated each individual data is from the mean
2
1
standard deviation
a measure of spread that describes an average distance of every score from the mean
represent the typical distance a score is from the mean; used for interval/ratio data only.
2
1
standard deviation
-indicates the average deviation of scores from the mean -appropriate only for interval and ratio scale variables
indicates that average deviation of from mean symbolized as s abbreviated sd
1
0
standard deviation
a calculation of the average difference between each score in the data set and the mean. bigger values indicate greater variation.
a low standard deviation means that most bumber are close to average and the error of the mean
2
1
standard deviation
a measure of how spread out the data are, distance from the mean how spread out the bell is in a frequency distribution
a measure of how spread out numbers are. allows a &"standard&" way to know what is &"normal&" in a data set.
2
1
standard deviation
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
estimates the spread of the scores away from the mean ***most common measure
0
0
standard deviation
- about 2/3 (68%) of all observations in a normal distribution lie within 1 sd of the mean
indicates degree of dispersion about the mean value of distribution curve of a normal distribution as it falls away from its peak on either side
3
1
standard deviation
a measure of variability that is equal to the square root of the variance.
a statistical measure of the amount of dispersion in a set of scores, square root of the variance
1
0
standard deviation
square root of variance, indicates variability about the mean
a measure of variability that describes the deviation from the mean of a frequency distribution in the original units of measurement; the square root of the variance
1
0
standard deviation
measures the variability within a single sample; can use the standard error of the mean to determine how precisely he mean of the sample estimates the population mean
the measure of the approximate average amount scores in a distribution deviate from the mean. distribution with a larger standard deviation have more spread.
3
1
standard deviation
an estimate of how widely the scores are spread around the mean in a frequency distribution
representation of the variability or spread of the dataset; the amount the scores in a distribution deviate from the mean
0
0
standard deviation
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
a statistical measurement used to document the disparity between an individual's test score and the mean
2
1
standard deviation
the measure of variation that tells you how tightly all of the cases are clustered around the mean
how the data is dispersed or spread around the mean
3
1
standard deviation
measures the dispersion in a frequency distribution; average distance of cases from mean
measures variability by averaging dispersion of numbers around the mean
1
0
standard deviation
portrays how far away from the mean individual scores on average are located
tells you the typical difference between any one score and the mean of all scores
1
0
standard deviation
.the average distance from the mean (portrays how far away from the median individual scores on average are located) .the square root of the variance
tells you the typical difference between any one score and the mean of all scores
0
0
standard deviation
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
associated with precision measure of the actual spread in the data set, how much data differs from one another
2
1
standard deviation
average expected variation of scores within the group.
average expected variation of scores eithin the group. about 68% of scores will typically fall between m+/- sd.
2
1
standard deviation
the average amount of error between the mean and the observed scores in the data. the square root of the variance and a measure of dispersion.
the typical deviation between an individual score and the group mean sd = square root of the variance
1
0
standard deviation
estimates the spread of the scores away from the mean ***most common measure
a statistical measurement used to document the disparity between an individual's test score and the mean
2
1
standard deviation
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
amount by which the scores vary from the mean. a higher means there is more variation in the scores
1
0
standard deviation
average distance of scores from mean
a computed measured of how much scores vary around the mean score
1
0
standard deviation
a computed measure of how much scores vary around the mean score...used only with interval or ratio scale data
a measure of dispersion of a data set, that is the square root of the variance.
3
1
standard deviation
how far, on average, each score was from the mean
the average measure of how much each score differs from the mean.
2
1
standard deviation
average deviation of each score from the mean
a computed measure of how much scores deviate from the mean score
3
1
standard deviation
how far scores deviate from the mean
a measure of the amount of variation in a set of scores - the typical amount by which scores deviate from the mean.
2
1
standard deviation
a measure of how spread out the data are, distance from the mean how spread out the bell is in a frequency distribution
a measure of how spread out numbers are within a population or sample. the more spread apart the data, the higher the deviation.
1
0
standard deviation
a measure of variability that describes an average distance of every score from the mean, same units as the measurements
measures the variability within a single sample; can use the standard error of the mean to determine how precisely he mean of the sample estimates the population mean
0
0
standard deviation
a computed measure of how much scores vary around the mean score. with more accurate technology, bump in deviation can go from large to incredibly thin minimizing average error.
a statistical measurement used to document the disparity between an individual's test score and the mean
2
1
standard deviation
amount by which the scores vary from the mean. a higher means there is more variation in the scores
is a measure of variability that indicates the typical distance between a set of scores of a distribution and the mean, or average, score.
3
1
standard deviation
the square root of the 'average' of each score's squared deviation from the mean score. (square root of the variance)
deviation of scores around the mean (square root of variance)
2
1
standard deviation
a measure that is used to quantify the amount of variation or dispersion of a set of data values (want within six standard deviation of the mean)
quantity amount of variation of a set of data
2
1
standard deviation
how far away your data is from mean (average score)
measures how much the scores vary from the mean. the percentages stay the same in every curve. used to compare scores
0
0
standard deviation
the most frequently used statistic for designating the degree of variability in a set of scores.
the average distance of data points from the mean
2
1
standard deviation
a popular measure of variability, is calculated based on the distance/dispersion of individual observations from their means
a statistical measurement used to document the disparity between an individual's test score and the mean
3
1
standard deviation
the square root of the variance (it is the typical distance of scores from the mean)
deviation of scores around the mean (square root of variance)
2
1
standard deviation
the square root of the variance. this measures how spread out the data are from the mean.
a measure of how spread out the data is from the mean and is useful for data that is fairly symmetric; the square root of variance
2
1
standard deviation
measures the variability within a single sample; can use the standard error of the mean to determine how precisely he mean of the sample estimates the population mean
measure of dispersion around the mean for normally distributed continuous data; expresses variability within the sample
0
0
standard deviation
the most common measure of spread that indicates how far each observation is from the mean
- measures spread around mean - must have at least 5 trials - assume: 1) normal distribution of values around mean 2) data not skewed to either end
1
0
standard deviation
the &"average&" scatter away from the mean. it is also the square root of the variance
measure shows how much variability there is in scores -> looks at the scores at each end of a distribution
3
1
standard deviation
relates the average distance of any score from the mean
average distance from mean to a certain score
1
0
standard deviation
square root of variance, indicates spread of the data; large sdev means larger variability
square root of the variance is often used for statistical applications
3
1
standard deviation
the most widely used measure of dispersion of a frequency distribution, equal to the positive square root of the variance.
used to analyze descriptively the spread of scores in a distribution, the positive square root of variance. most common measure of dispersion.
2
1
standard deviation
is a statistics that indicates the average amount of deviation of values from the mean score
average deviation of scores on either side of the mean
2
1
standard deviation
a measure that is used to quantify the amount of variation or dispersion of a set of data values (want within six standard deviation of the mean)
-square root of variance -common measure of consistency in business applications, such as quality control -measures the amount of variance around the mean
2
1
standard deviation
amount by which the scores vary from the mean. a higher means there is more variation in the scores
a statistical measurement used to document the disparity between an individual's test score and the mean
2
1
standard deviation
how scores vary from the mean
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
1
0
standard deviation
amount by which the scores vary from the mean. a higher means there is more variation in the scores
associated with precision measure of the actual spread in the data set, how much data differs from one another
2
1
standard deviation
a measure of variability of the data points from their own mean. low = tighter distribution around the mean high = wider distribution around the mean
the most common measure of spread that indicates how far each observation is from the mean
2
1
standard deviation
a computed measure of how much scores vary around the mean score, about 68% and 95% of values are within one or two deviations
- measures how much the scores vary from the mean - percentages stay the same in every curve
2
1
standard deviation
how various percentages of scores fall away from the mean.
a computation that captures how far, on average, each score in a data set is from the mean.
2
1
standard deviation
a computed measure of how much scores vary around the mean score square root of (x-mean)squared divided by n-1
1.) sum of deviation squared / sample size 2.) find square root of above equation
1
0
standard deviation
a measure of how spread out the data are from the mean.
a measure of how spread out numbers are. allows a &"standard&" way to know what is &"normal&" in a data set.
2
1
standard deviation
represent the typical distance a score is from the mean; used for interval/ratio data only.
- measure of average distance from the mean - most frequently used measure of variability
1
0
standard deviation
the average distance of data points from the mean
- an index of the degree of variability of study data around the mean of those data
1
0
standard deviation
second measure of dispersion, which corrects for such outliers using a formula that takes into account how close or how far each value lands relative to the distribution mean
indicates a type of average amount by which all the values deviate from the mean - the greater the dispersion, the bigger this is
3
1
standard deviation
the square root of the variance, common way to indicate how different a particular measurement is from the mean
a commonly used measure of variation equal to the square root of variance represents variation around the sample mean
2
1
standard deviation
distance from the mean (square root of the variance) - measure of dispersion fro interval and ratio data
square root of the variance is often used for statistical applications
2
1
standard deviation
- average of all variance scores (data points are from the mean) - standard distance from the mean
a computed measure of how much scores vary around the mean score so avrg of the difference between any number and the mean
2
1
standard deviation
amount by which the scores vary from the mean. a higher means there is more variation in the scores
a popular measure of variability, is calculated based on the distance/dispersion of individual observations from their means
1
0
standard deviation
a computed measure of how much scores vary around the mean score. with more accurate technology, bump in deviation can go from large to incredibly thin minimizing average error.
is a measure of variability that indicates the typical distance between a set of scores of a distribution and the mean, or average, score.
2
1
standard deviation
a measure of variability that describes an average distance of every score from the mean (normal distribution)
represent the typical distance a score is from the mean; used for interval/ratio data only.
2
1
standard deviation
average distance from the mean for a set of scores becomes its own unit of measure (z-score-the # of standard deviations from the mean)
a measure of how far a piece of data is away from the average.
3
1
standard deviation
the most widely used measure of dispersion, it represents the average amount of variation around the mean
-most widely used variability index is standard deviation -calculated based on every vale in the distribution -summarizes the average amount of deviation of values from the mean
0
0
standard deviation
average amount either above or below the mean that the data deviate from the mean
a low standard deviation means that most bumber are close to average and the error of the mean
3
1
standard deviation
square root of the variance. provides exact distances from mean (unlike variance). illustrates how tightly data is clustered around mean.
measure of variability that describes the average distance from the mean; obtained by taking the square root of the variance
3
1
standard deviation
average distance of scores from mean
a measure of how close the scores are centered around the mean score. average amount that a given score deviates from the mean score
0
0
standard deviation
-from variance -square root of variance calculated more easily determined than variance -small data= #'s close to mean -large data=#'s far from mean (more variability) -coefficient of variation (cv)
square root of variance, indicates variability about the mean
2
1
standard deviation
how scores vary from the mean
a statistical measurement used to document the disparity between an individual's test score and the mean
0
0
standard deviation
&"s&" distance between mean and calculated amount of either side of mean (see p. 60)
technically the second moment calculated about the mean- scientists typically follow up on p values that are outside of 2 standard deviations from the mean.
2
1
standard deviation
used to measure variability of a data set. it is calculated as the square root of the variance of a set of data,
a computed measure of how much scores vary around the mean score...used only with interval or ratio scale data
2
1
standard deviation
quantity amount of variation of a set of data
a statistic that measures the amount of data dispersion around the mean.
2
1
standard deviation
average deviation of scores from the mean. square root of the variance. (becomes larger as more people have scores that lie farther from the mean value)
-measure of the average deviation (units) of each score from the mean -square root of variance
3
1
standard deviation
the square root of the variance (it is the typical distance of scores from the mean)
distance from mean; square root of average squared deviation
2
1
standard deviation
amount by which the scores vary from the mean. a higher means there is more variation in the scores
a computed measure of how much scores vary around the mean score. with more accurate technology, bump in deviation can go from large to incredibly thin minimizing average error.
2
1
standard deviation
average deviation of scores from the mean. square root of the variance. (becomes larger as more people have scores that lie farther from the mean value)
measure of how much all scores tend to vary from the sample mean. the square root of the average squared deviation from the mean
2
1
standard deviation
a measure of variability that describes an average distance of every score from the mean the larger the sd, the more variable the scores
-describes how far the majority of scores fall from the mean. -sd is the average distance the data are from the mean.
3
1
standard deviation
-calculated by taking the square root of the variance -spread of scores around the mean and acceptable wiggle room from the mean
measure of how much all scores tend to vary from the sample mean. the square root of the average squared deviation from the mean
3
1
standard deviation
a measure of variability that describes an average distance of every score from the mean, same units as the measurements
measures the dispersion in a frequency distribution; average distance of cases from mean
3
1
standard deviation
square root of the variance the farther away the data points on the distribution are form the mean, the greater the variance and standard deviation
indicates a type of average amount by which all the values deviate from the mean - the greater the dispersion, the bigger this is
3
1
standard deviation
used to measure variability of a data set. it is calculated as the square root of the variance of a set of data,
a measure of dispersion of a data set, that is the square root of the variance.
2
1
standard deviation
calculated measure that provides info on how much the data are spread around the mean (so deals with precision) helps filter out biological noise
is a measure of variability that indicates the typical distance between a set of scores of a distribution and the mean, or average, score.
1
0
standard deviation
measure of how much all scores tend to vary from the sample mean. s=√Σ(x-m)/n
a computed measure of how much scores vary around the mean score. with more accurate technology, bump in deviation can go from large to incredibly thin minimizing average error.