Mathematics, 08.06.2021 04:00 jebjeb6124
One year Alex had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitcher at his school, with an ERA of . Also, had the lowest ERA of any female pitcher at the school with an ERA of . For the males, the mean ERA was and the standard deviation was . For the females, the mean ERA was and the standard deviation was . Find their respective z-scores. Which player had the better year relative to their peers, or ? (Note: In general, the lower the ERA, the better the pitcher.) had an ERA with a z-score of nothing. had an ERA with a z-score of nothing.
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One year Alex had the lowest ERA (earned-run average, mean number of runs yielded per nine innings...
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