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April 24, 2014

April 24, 2014

Posted by **SANDRA** on Friday, September 16, 2011 at 11:09pm.

a. What is the probability that a tire wears out before 70,000 miles.

b. What is the probability that a tire last more than 100,000 miles?

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**Ms. Sue**, Friday, September 16, 2011 at 11:12pmPlease use the same name for your posts. Karen, Sandra, Joi.

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**andrew**, Tuesday, July 10, 2012 at 10:55pm.6

- STATS -
**Mariam Anwar**, Sunday, March 31, 2013 at 3:05amX~N(82000,6400^2)

a) P(X<70000)=P((X-82000)/6400<(70000-82000бн Z-table=0.0303964

P(X<70000)=0.0303964

b) P(X>100000)=P(Z>2.8125)=0.0024579

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