KRose8403 KRose8403

03-05-2018
Mathematics

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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?

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afeshla afeshla

03-05-2018

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

340+x=410

410-340=70

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