Suppose that there are 30 quarters, 17 dimes and 13 nickels in a bag and one coin is drawn from the bag. What is the expected value of the draw in dollars?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question

Suppose that there are 30 quarters, 17
dimes and 13 nickels in a bag and one coin
is drawn from the bag. What is the
expected value of the draw in dollars?
(Round to the nearest cent.) 

A) 0.18

B) 0.16

C) 0.15

D) 0.17

E) 0.14

 

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