SOLUTION: Dataset A: 64 65 66 68 70 71 72 Dataset B: 64 65 66 68 70 71 720 For dataset A, the mean and median are 68. Looking at dataset B, notice that all of the observations except

Algebra ->  Probability-and-statistics -> SOLUTION: Dataset A: 64 65 66 68 70 71 72 Dataset B: 64 65 66 68 70 71 720 For dataset A, the mean and median are 68. Looking at dataset B, notice that all of the observations except       Log On


   

Question 1145298: Dataset A: 64 65 66 68 70 71 72 Dataset B: 64 65 66 68 70 71 720 For dataset A, the mean and median are 68. Looking at dataset B, notice that all of the observations except the last one are close together . Which measure will be affected by this last observation in dataset B?
Answer by greenestamps(13195) About Me  (Show Source):
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Each data set has 7 elements; when arranged in increasing order, the first 6 elements are the same. That means the medians of both sets are the same.

The much larger last element in set B means the mean of set B will be much larger than the mean of set A.

ANSWER: The median is not affected; the mean is.