Statistics questions

label Statistics
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schedule 1 Day
account_balance_wallet $5

time spent waiting in the line is approximately normall distrubuted the mean is 7 min and the variance is 1 min find the probability that a person will wait more than 5 min round to 4 decimal places

Oct 19th, 2017

Mean =7 min

SD = 1 min

z = (5-7)/1 = -2

P ( z > -2) = 0.97725 = 0.9773 = 97.73%

Mar 2nd, 2015

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