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home / study / math / statistics and probability / statistics and probability questions and answers / children's fitness is assessed by finding the distance, in meters, that they can run in 6 minutes. ... Question: Children's fitness is assessed by finding the distance, in meters, that they can run in 6 minutes... Children's fitness is assessed by finding the distance, in meters, that they can run in 6 minutes. Overall, this distance varies fairly normally, with mean 835 and standard deviation 111. Let X1 be the distance run in 6 minutes and X2 be the distance run by another randomly selected child. Find the mean and standard deviation in the differences of distances run

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Answer #1

From the given information we have

The distribution of the differences of distances run will be normal with mean and SD as follows:

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