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The testing times for a group of college students were normally distributed with a mean of 38 minutes and a standard deviation of 3.4 minutes.
The testing times for a group of college students were normally distributed with a mean of 38 minutes and a standard deviation of 3.4 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. 17.9 Incorrect 22.6 Incorrect 27.3 Incorrect 32 Incorrect 36.7 Incorrect 41.4 Incorrect 46.1 Incorrect Used the Empirical Rule to complete the following statements: 68% of testing times were between 27.3 Incorrect minutes and 36.7 Incorrect minutes. 95% of testing times were between 22.6 Incorrect minutes and 41.4 Incorrect minutes. 99.7% of testing times were between 17.9 Incorrect minutes and 46.1 Incorrect minutes. 50% of testing times were below 32 Incorrect minutes
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