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Mathematics

Olive2006:

Sara tried to compute the mean of her 8 test scores. She mistakenly divided the correct sum of all her test scores by 7, which yields 96. What is Sara’s mean test score?

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Extrinix:

If she mistakenly divided by 7, you can reverse the function to find what the sum of all of her grades is \(\sf{7 \times 96 = 672}\) Now we take the answer and divide it by the actual value, 8, to get the mean score. \(\sf{\dfrac{672}{8} = Your~mean~score}\)

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