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Author Question: The tread life of a particular brand of tire is a random variable best described by a normal ... (Read 84 times)

Diane

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on: Feb 14, 2020

Question 1

The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2300 miles. What is the probability a particular tire of this brand will last longer than 57,700 miles?
◦ .8413
◦ .7266
◦ .2266
◦ .1587

Question 2

The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1700 miles. What is the probability a certain tire of this brand will last between 56,430 miles and 56,940 miles?
◦ .4649
◦ .9813
◦ .0180
◦ .4920
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by Diane on Feb 14, 2020

succesfull

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Diane

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Reply 2 on: Feb 14, 2020
YES! Correct, THANKS for helping me on my review

matt95

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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