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34kurt
3 years ago
15

PLEEEEEAAAASSSSSEEEEE HELP ME IM IN NEED OF ITTTTTT!!!!!!! IT'S URGENT

Mathematics
1 answer:
alina1380 [7]3 years ago
3 0
Going to answer this in the comments because my keyboard is covering my screen :(
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QUESTION21 pointssave AnswerThe perimeter of a rectangle is 136 ft. The ratio of its length to its width is g 8, What are the di
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3 0
3 years ago
Replacement times for CD players are normally distributed
slavikrds [6]

Answer:

0.04

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P(0\leq X\leq a)=P(\frac{0-\mu}{\sigma} \leq \frac{X-\mu}{\sigma}\leq \frac{a-\mu}{\sigma}), Z= \frac{X-\mu}{\sigma}=P(0\leq X\leq a)=P(\frac{0-\mu}{\sigma} \leq \frac{X-\mu}{\sigma}\leq \frac{a-\mu}{\sigma}), Z= \frac{X-\mu}{\sigma}

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P(X>7)=1-0.96=0.04

3 0
3 years ago
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