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问一道英文数学题
The larger the spread of data around the mean
a.the smaller the sum of squared deviations
b.the smaller the interquartile range
c.the larger the mean
d.the larger the variance
求答案是哪个
人气:190 ℃ 时间:2020-03-28 19:16:15
解答
题意为:围绕着均值的分布越大(宽),则:
显然:变差越大.d正确.
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