Scores on a certain test were normally distributed with a mean of 80 and a standard...

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Scores on a certain test were normally distributed with a mean of 80 and a standard...

Scores on a certain test were normally distributed with a mean of 80 and a standard deviation of ± 12. What is the probability that a given student got a score more than 80? Your answer should be correct to four decimal places.

math Statistics-And-Probability

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Answer 1

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Scores on a certain test ax ANN(80, 122) P(x)80) P ( X-80 > 80100) = P(azo) [X-MX = 2 ~N(0,1)] - 0.5ooo seare mare Probabilit

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In a recent year, the total scores for a certain standardized test were normally distributed

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In a recent year, the total scores for a certain standardized test were normally distributed

In a recent year, the total scores for a certain standardized test were normally distributed, with...

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