Question 634747
A set of 50 data values has a mean of 45 and a variance of 9.
I. Find the standard score (z) for a data value = 52.
z(52) = (52-45)/3 = 7/3
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II. Find the probability of a data value < 52.
P(x < 52) = P(z < 7/3) = 0.9902
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Cheers,
Stan H.
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