Mathematics, 18.07.2021 18:00 soccerjessie40901

An achievement test was administered to a class of 20,000 students. The mean score was 80 and the standard deviation was 11. If Lingard scored 72 in the test, how many students did better than him?

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An achievement test was administered to a class of 20,000 students. The mean score was 80 and the st...

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