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On a test that has a normal distribution, a score of 49 falls two standard deviations below the mean, and a score of 61 falls one standard deviation above the mean. Determine the mean of this test.
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On a test that has a normal distribution, a score of 49 falls two standard deviations

below the mean, and a score of 61 falls one standard deviation above the mean.
Determine the mean of this test.

User EdWood
by
5.4k points

1 Answer

3 votes

Answer:

57 mean

Explanation:

x = mean

(x - 49 ) = 2 ( 61 -x)

x = 57

User Mukeshkumar S
by
5.5k points
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