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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi
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Grandma is trying out a new recipe for raisin bread.Each

Chapter 4, Problem 16E

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QUESTION:

Grandma is trying out a new recipe for raisin bread. Each batch of bread dough makes three loaves, and each loaf contains 20 slices of bread.

a. If she puts 100 raisins into a batch of dough, what is the probability that a randomly chosen slice of bread contains no raisins?

b. If she puts 200 raisins into a batch of dough, what is the probability that a randomly chosen slice of bread contains 5 raisins?

c. How many raisins must she put in so that the probability that a randomly chosen slice will have no raisins is 0.01?

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QUESTION:

Grandma is trying out a new recipe for raisin bread. Each batch of bread dough makes three loaves, and each loaf contains 20 slices of bread.

a. If she puts 100 raisins into a batch of dough, what is the probability that a randomly chosen slice of bread contains no raisins?

b. If she puts 200 raisins into a batch of dough, what is the probability that a randomly chosen slice of bread contains 5 raisins?

c. How many raisins must she put in so that the probability that a randomly chosen slice will have no raisins is 0.01?

ANSWER:

Solution

Step 1of 3

Here given each batch of bread dough makes 3 loaves

Each loaf contains 20 slices

So No.of slices for one batch is 3(20)=60

Let X is no.of raisins in the bread

Here Xpoison()

The pmf of poisson distribution is P(x)=; x=0,1,2,...........

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