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Mathematics, 25.05.2021 20:30 destinywashere101

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
d. below 60
b. 80 and 90 "​

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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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