<prompt> Median is-Middle most value in sequentially arranged dataMost frequently occurring value in a data setHighest value in a dataLowest value in a data  <response>: The median A median is described as a value separating the higher half of a data set from the lower half.It does not depend on the total and number of items.To obtain the median, the data is first arranged in an ascending or descending order of magnitude, and then the value of the middle observation is located, which is called median.For example, diastolic BP of 9 individuals was as follows 83, 75, 81, 79,71, 95, 75, 77, 84. Now data is arranged in ascending order 71, 75, 75, 77, 79, 81, 83, 84, 95. Here, 79 is the middle observation that is separating the upper four values from the lower four values, so it is the median. If there are two values in the middle instead of one, the median is worked out by taking the average of the two middle values.For example, If diastolic BP of 10 individuals is as follows 83, 75, 81, 79, 71, 95, 75, 77, 84, 90. Data is arranged in ascending order 71, 75, 75, 77, 79, 81, 83, 84, 90, 95Here two values are separating the upper half of values from the lower half. So the median here is - Median 79 81 2 80. Advantage of medianThe value of the median is not affected by abnormal very high or very low value. Taking the example as was taken in the mean The income of 7 people per day in rupees is as follows 5, 5, 5, 7, 10, 20, 300 Total 352 Here mean 50.3, median 7. The value of mean has affected seriously, whereas the median is not affected, and the median is more nearer to the truth. So, the median is used when the distribution of values is skewed deviated with some small number of very high values median is used for skewed distribution. 