The monthly household income is $4,859. He gets paid $36.42 an hour. How many hours will he have to work each month to meet the
income? Round the answer two decimal places
1 answer:
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The probability that a randomly selected customer takes more than 10 minutes will be 8.38%
<em><u>Explanation</u></em>
The average or mean is 8.56 minutes and standard deviation
is 1.04 minutes.
<u>Formula for finding the z-score</u> is:
So, the z-score for 10 minutes will be.....
Now, according to the standard normal distribution table, . So.....
So, the probability that a randomly selected customer takes more than 10 minutes will be 8.38%