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Chapter 13: Q 24 (page 869)

You have four \(1 bills, three \)5 bills, and two \(10 bills in your wallet. If you pick a bill at random, what is the probability that it will be a \)1 bill?

Short Answer

Expert verified

The probability of selecting $1 bill is49

Step by step solution

01

Step 1. Given information

You have four $1 bills, three $5 bills, and two $10 bills in your wallet.

02

Step 2. probability of selecting $1 bill

The number of $1 bill is 4

Total number of bills 4+3+2=9

The probability of selecting $1 bill can be calculated by using the probability equation

P(A)=Number of Favourable OutcomeTotal Number of F avourable Outcomes=nN

Substitute n=4,N=9in the equation and evaluate

P$1=49

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