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in new york city the average response time for calls to the first depatrment is a bout 5 minutes with a standarrd deviation of...Asked by malak
in new york city the average response time for calls to the first depatrment is a bout 5 minutes with a standarrd deviation of 1.5 minuties suppose response follow a normal distribuation.
1-what is the probability that a response time exceeds 9 minutes/
2-compute the top 10 th percentile for response times ?
1-what is the probability that a response time exceeds 9 minutes/
2-compute the top 10 th percentile for response times ?
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Answered by
Damon
http://davidmlane.com/hyperstat/z_table.html
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