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5 votes
the average cost per slice of pizza is 88 cents with a standard deviation of 5 cents what is the z score of a slice of pizza with a cost of 99 cents

User OG Sean
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1 Answer

3 votes
z = (x -μ)/σ
.. = (99 -88)/5
.. = 11/5
.. = 2.2

The z score is 2.2.
User Alex Kofman
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