The grade-point average in an econometrics examination was normally distributed with a mean of 75. In a sample of 10 percent of

Question

3 years ago

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The grade-point average in an econometrics examination was normally distributed with a mean of 75. In a sample of 10 percent of

students it was found that the grade-point average was greater than 80. Can you tell what the s.d. of the grade-point average was?

Mathematics

1 answer:

never [62] · Answer 1 · 2021-11-17T01:05:58+03:00

never [62]3 years ago

3 0

To solve a standard deviation we require a specific result for each data. So this question(data from question) can not be enough to solve standard deviation.