Mathematics, 16.03.2020 17:05, luislopez05

Scores on a test have a mean of 78.2 and 8 percent of the scores are above 89. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth, if necessary.

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Scores on a test have a mean of 78.2 and 8 percent of the scores are above 89. The scores have a dis...