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attashe74 [19]
3 years ago
15

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 i

s $930.00, what z-score corresponds to this value?
Mathematics
1 answer:
Llana [10]3 years ago
3 0
Answer = 2.00

Z score is a statistical that corresponds to the standardization of the regular score to a normal distribution

The formula for Z score is Z = [X - mean ]./ (standard deviation)

Here X = 930.00; mean = 900.00; and standard deviation = 15.00

Then, Z = [930.00 - 900.00] / 15.00 = 30.00 / 15.00 = 2.00

Therefore, your answer is 2.00

Hope I helped :)
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