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OpenStudy (anonymous):
helpppppppppp !
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OpenStudy (anonymous):
with?
OpenStudy (anonymous):
A sample of Geometry class final exam grades are as follows: 80, 85, 72, 76, 95 Find the variance
OpenStudy (anonymous):
63.44
OpenStudy (anonymous):
A student has the following grades: 86, 80, 79, 85, 70. Find the standard deviation of the grades.
OpenStudy (anonymous):
5.69
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OpenStudy (anonymous):
Adult IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the Empirical Rule to find the percentage of adults with scores between 70 and 130.
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