This table displays statistical information in various categories on 10 supermarkets. One of the rows shows the averages of those 10 supermarkets.
For each of the following statements, select True if the statement can be verified to be true based on the ifnormation provided. Otherwise, select False.
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For the supermarkets whose average customer age falls between 35 and 40, the average number of registers that checkout less than 10 items is below average.
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There is a strong positive correlation between the number of registers that checkout more than 10 items and the average customer age
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Supermarkets with cafes are more likely to also have a restaurant than to not have a restaurant.
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第一小题supermarket D不就是反例嘛?人均年龄35.1在35和40之间,可是less than 10 items的人数是5,大于平均3.5
又掉陷阱里了,第一问的确是问平均值是否低于平均值。
第一问估计是三家平均