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If the mean of normally distributed test scores is 78 and the standard deviation is 7 find the percentage of scores in the following ranges: a)71-92 b)64-100 c)70-80

If the mean of normally distributed test scores is 78 and the standard deviation is 7 find the percentage of scores in the following ranges: a)71-92 b)64-100 c)70-80
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If the mean of normally distributed test scores is 78 and the standard deviation is 7 find the percentage of scores in the following ranges:

a)71-92
b)64-100
c)70-80

asked
User Joseph Tesfaye
by
8.5k points

1 Answer

1 vote

Answer:

a

Explanation:

78-7=1 making the standard deviation between 71-92

answered
User Ege Ersoz
by
8.0k points
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