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3 years ago

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If Jeremy is in the 90th percentile in the main office test scores is 180 with a standard deviation of 15 which of the following

scores with Jeremy most likely get on a standardized test 249, 180, 199, or 210?

1 answer:

Alika [10]3 years ago

4 0

199.

the z score for the 90th percentile is 1.28, so you can solve the equation

$\frac{x-180}{15} = 1.28$

which gets you the 199

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