Answer
0.224
Work Step by Step
The probability of getting a hearts in a deck is $p=13/52=0.25$
The mean value of hearts when drawing 5 cards is
$\lambda=np=5\times0.25=1.25$
Use Poisson formula
$P(2,1.25)=\frac{e^{-1.25}1.25^2}{2!}=0.224$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 5 - Discrete Probability Distributions - Review Exercises - Section 5-4 - Page 306: 29
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