a. Would you assume by only looking at the shape of the distribution that the data is normal, skewed right, or skewed left?
b. Based on your answer to part (a) above, would you assume that the mean or the median would be the better predictor of center? Why?
Homework Answers
a. Looking at the histogram we can assume that the distribution is approximately normal . Because the shape of the distribution is approximately bell shaped , the maximum frequency is at the middle of the distribution .
So the shape is approximately Normal .
b. As this distribution is approximately Normal , the mean and median will be the same . Because for symmetric distribution mean , median and mode is same .
So we can use mean or median as the Measure of center and the approximately value of the center is 24 .
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