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Posted by **Priya** on Sunday, October 14, 2012 at 7:27am.

(a) What is the probability that a particular delivery will exceed one hour?

(b) Based on part (a), what is the probability that a particular delivery arrives in less than one hour?

(c) What is the probability that the mean time of 5 deliveries will exceed one hour?

- Math -
**Reiny**, Sunday, October 14, 2012 at 10:33amin

http://davidmlane.com/normal.html

I entered:

mean -- 48.2

SD ---- 13.4

click on "above" and enter 60 (for 1 hour) to get

.1893

etc

- Math -
**hi**, Tuesday, March 12, 2013 at 9:43pm78

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