Mathematics, 20.12.2019 18:31 jadacherry

$\mbox{the mean of a set of test scores is 86 and the standard deviation is 3. }$
$\mbox{if there are 200 test scores in the data sample, how many of them were in }$
$\mbox{the 86% to 89% range? }$

Answers: 1

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$\mbox{the mean of a set of test scores is 86 and the standard deviation is 3. }$
$\mbox{if th...