QUESTION 3 Roger buys three tickets in a rale in which there is a total of 20 tickets. There are two prizes. Find the probability of him winning: a first prize b first prize only both prizes с P(BP) = ²/10 x 14 = - 380 = 106.7 3 190
QUESTION 3 Roger buys three tickets in a rale in which there is a total of 20 tickets. There are two prizes. Find the probability of him winning: a first prize b first prize only both prizes с P(BP) = ²/10 x 14 = - 380 = 106.7 3 190
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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Transcribed Image Text:QUESTION 3
a first prize
b
C
d
e
f
Roger buys three tickets in a raffle in which there is a total of 20 tickets. There are two
prizes. Find the probability of him winning:
first prize only
both prizes
no prizes
at least one prize
one prize only.
2
P(BP) = 3³/20x
1-2740 - 190-3 = 1870
20 19
6
380
=
3
190
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