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45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 students took the test, find the number expected to fall within each of the following ranges: a. 79 and 91 c. above 80 b. 80 and 90 d. below 60

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45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 studen...

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45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 students took the test, find the number expected to fall within each of the following ranges: a. 79 and 91 c. above 80 b. 80 and 90 d. below 60​

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45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 students took the test, find the number expected to fall within each of the following ranges: a. 79 and 91 c. above 80 b. 80 and 90 d. below 60