Determine the standard score
A set of 50 data values has the mean of 45 and a variance of 9.
I. Determine the standard score (z) for a data value = 52.
II. Determine the probability of data value < 52.
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Age at onset of dementia was estimated for sample of adults between the ages of 60 and 75. For 15 subjects, the results were SX = 1008, and S(X-M) squared = 140.4. Employ this info to answer the following:
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A set of 50 data values has the mean of 45 and a variance of 9. Determine the standard score (z) for a data value = 52.
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