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On the first test, the mean is 70, the standard deviation is 5, and your score is 80. on the second test, the mean is 70, the standard deviation is 15, and your score is 85. compared to other students,
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On the first test, the mean is 70, the standard deviation is 5, and your score is 80. on the second test, the mean is 70, the standard deviation is 15, and your score is 85. compared to other students, how well did you do on the two tests?

User Andrey Zhilyakov
by
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1 Answer

3 votes

85+88+87+80+x all divided by 5= 82

340+x=410

410-340=70

User Pditommaso
by
8.2k points
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