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OpenStudy (awesomedude2078):
A home business has an average income of $900.00 per month with a standard deviation of $15.00. If the income in a given month is $930.00, what z-score corresponds to this value? 0 1 2
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OpenStudy (awesomedude2078):
930-900 z=------------ 15
OpenStudy (mathmate):
Correct. In general, for a normally distributed random variable, Z=\((X-\mu)/\sigma\)
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