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gavmur [86]
2 years ago
8

Someone help me please

Mathematics
1 answer:
vova2212 [387]2 years ago
7 0

50 x 32 = 1600square feet

area of a square is S^2 so the length of the side of a square would be 1600 =S^2

S=sqrt(1600) = 40 feet long

 perimeter of a square is 40 x 4 = 160 feet

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When the distribution is normal, we use the z-score formula.

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The average hourly wage of workers at a fast food restaurant is $7.25/hr with a standard deviation of $0.50.

This means that \mu = 7.25, \sigma = 0.5

If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $8.00?

This is 1 subtracted by the pvalue of Z when X = 8. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{8 - 7.25}{0.5}

Z = 1.5

Z = 1.5 has a pvalue of 0.9332

1 - 0.9332 = 0.0668

0.0668 = 6.68% probability that the worker earns more than $8.00

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