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OpenStudy (anonymous):
The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of .6 minutes. What is the probability that a conversation lasts longer than 5 minutes? 0.04746 0.45254 0.54746 0.95254
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OpenStudy (anonymous):
First answer
OpenStudy (anonymous):
can u tell me how tho?
OpenStudy (anonymous):
5-4/.6=1.67 Pr[Z>1.67]=0.047459682
OpenStudy (anonymous):
Round
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