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DerKrebs [107]
4 years ago
13

A battery manufacturer makes batteries that have a failure rate of .015. That is, 15 out of each 1,000 batteries are defective.

What is the probability that 175 out of the 10000 will be defective
Mathematics
1 answer:
Agata [3.3K]4 years ago
8 0
P(failure) = 0.015
p(success) = 1 - 0.015 = 0.985
let x be the random variable that a battery is deffective, then
p(x = 175) = 10000C175 * (0.015)^175 * (0.985)^(10000 - 175)
= 0.00408
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5 0
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Answer:

(4x + 7) or

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This is the sum of cubes. If you have choices you really should list them because often the way  we write  answers is not in agreement with what you are given.

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