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Today, 15:20

Taylor took a test in both biology and math last week. the biology test had a mean of 70 and a standard deviation of 7 whereas the math test had a mean of 75 and a standard deviation of 10. taylor scored a 76 on the biology test and a 76 on the math test. on which test did she do better in comparison to the rest of the class

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  1. Today, 18:37
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    We calculate her standard scores of the biology and math test.

    z (biology) = (76-70) / 7 = 6/7

    z (math) = (76-75) / 10 = 1/10

    Hence she did better in biology
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