find the average of the numbers 5/8, 9/10, 2 3/4 write the solution as a mixed number or fraction in lowest terms.
1 answer:
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z = -2.83
<u>Explanation:</u>
Given:
Mean, μ = 68
Standard deviation, σ = 6
Data point, x = 51
Z score, z = ?
We know:
Substituting the value we get:
A negative z score says that the data point is below average.