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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. com…
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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. com…
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Dec 14, 2019
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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?
Mathematics
high-school
Andrey Zhilyakov
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Andrey Zhilyakov
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85+88+87+80+x all divided by 5= 82
340+x=410
410-340=70
Pditommaso
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Dec 19, 2019
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Pditommaso
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