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What is APGAR scores of 30 children are recorded in a hospital and most of the readings are found to be 7 or above. What can you make out about this data distribution? and explain in detail?
Ans: B. Negatively skewed data(Ref Park 24Ie p886, 23Ie p847, 22Ie p786; High Yield Statistics/p67)Since more number of children has a higher APGAR score, the tail of the distribution curve will be towards the right.Hence, the data will be negatively skewed.Skewed Data Negative skewPositive skewLeft tail is longerdegMass of distribution is concentrated on the right of figuredegDistribution is said to be left-skewed, left-tailed, or skewed to the leftdeg.Right tail is longerdegMass of distribution is concentrated on the left of figuredeg.Distribution is said to be right-skewed, right-tailed, or skewed to the rightdeg.