Isabella was told that her score on an aptitude test was 3 standard deviations above the mean. If test scores were approximately normal with μ=77 and σ=6, what was Isabella's score? Do not include units in your answer. For example, if you found that the score was 77 points, you would enter 77.Provide your answer below:

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Asked Feb 21, 2019

Isabella was told that her score on an aptitude test was 3 standard deviations above the mean. If test scores were approximately normal with μ=77 and σ=6, what was Isabella's score? Do not include units in your answer. For example, if you found that the score was 77 points, you would enter 77.

Provide your answer below:

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Expert Answer

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In this question we have given that test scores follow the normal distribution with mean = 77 and population standard deviation = 6. Isabel...

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