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Chapter 13: Q. 56 (page 866)

According to the Girl Scouts of America, 9% of all Girl Scout cookies sold are shortbread/ trefoils. If a box of Girl Scout cookies is selected at random, what is the probability that it is not shortbread/trefoils?

Short Answer

Expert verified

The probability is0.91

Step by step solution

01

Step 1. Given Information 

The given data is that 9% of all Girl Scout cookies sold are shortbread/ trefoils.

02

Step 2. Explanation

If E represents an event and Erepresents the complement of E then P(E)=1-P(E). It is given thatP(E)=0.09

Substitute the values in the formula to find the required value.

P(E)=1-P(E)=1-0.09=0.91

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