Helppppp .............
1 answer:
Ok so suppose the theory that if you add two sides of a triangle together it will be more than the remaining side but it has to work for all three sides so the two sides 10+8=18 so the number has to be less than 18 but the number also has to be more than 3 because 8+3=11 and 11 is larger than ten. the answer is
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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%