Suppose that electrical components have lifetimes that are independent and that come from a normal distribution with
Question:
(a) If three components are selected, what is the probability that 1 lasts for less than 8000 minutes,
1 lasts between 8000 and 8300 minutes, and 1 lasts for more than 8300 minutes?
(b) A consumer buys a box of 10 components. What is the probability that the sixth component that the consumer uses is the second one to last less than 7900 minutes?
(c) If 7 components are selected, what is the probability that exactly 3 of them last for more than 8500 minutes?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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a PX 8000 8000 8200350 0571 0284 P8000 X 8300 8300 8200350 8000 8200350 0286 0571 0330 PX 8300 1 8...View the full answer
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Related Book For 
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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