今日份的SAT数学练习题5
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>>SAT数学解析：今日份的SAT数学练习题5
For each of the largest 21 airline companies in Europe, the average flight delay was calculatedand is shown in the dot plot above. If the dots representing the two airlines with the longestaverage flight delays are removed from the dot plot, what will happen to the mean, median, and range of the new data set?
A.Only the mean will decrease.
B.Only the mean and range will decrease.
C.Only the mean and median will decrease.
D.The mean, median, and range will decrease.
答案：B
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