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OpenStudy (anonymous):
PLease help on this math The average cost per once for glass cleaner is 7.7 cents with a standard deviation of 2.5 cent. what is the Z-score of glass cleaner with a cost of 10.1 cents per ounce A:0.96 B:1.31 C:1.94 D:4.04 E: none of the above
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OpenStudy (kropot72):
\[z=\frac{X-\mu}{\sigma}=\frac{10.1-7.7}{2.5}=you\ can\ calculate\]
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