Julia buys a bag of cookies that contains 5 chocolate chip cookies, 4 peanut butter cookies, 4 sugar cookies, and 8 oatmeal cookies.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Julia buys a bag of cookies that contains 5 chocolate chip
cookies, 4 peanut butter cookies, 4 sugar cookies, and 8
oatmeal cookies.
What is the probability that Julia reaches in the bag and
randomly selects a chocolate chip cookie from the bag, eats
it, then reaches back in the bag and randomly selects a sugar
cookie? Round your answer to four decimal places.
Question Help: D Video
Transcribed Image Text:Julia buys a bag of cookies that contains 5 chocolate chip cookies, 4 peanut butter cookies, 4 sugar cookies, and 8 oatmeal cookies. What is the probability that Julia reaches in the bag and randomly selects a chocolate chip cookie from the bag, eats it, then reaches back in the bag and randomly selects a sugar cookie? Round your answer to four decimal places. Question Help: D Video
Expert Solution
Step 1

Given data:

The number of chocolate chip cookies is c=5.

The number of peanut butter cookies is p=4.

The number of sugar cookies is s=4.

The number of oatmeal cookies is o=8.

The expression for the total number of cookies is,

n=c+p+s+o

Substitute the given values in the above expression.

n=5+4+4+8=21

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