(b) Find P(Y> 1|Y ≤ 3). (c) Hence, find the mean of Y.

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
The number of red lights, Y, that Sam stops at on his way to work is a random
variable with probability distribution given by:
(a) Find the value of a.
Y
0
1
විය.
2 3
P(Y= y) 3a 8a² 4a² 8a
Transcribed Image Text:The number of red lights, Y, that Sam stops at on his way to work is a random variable with probability distribution given by: (a) Find the value of a. Y 0 1 විය. 2 3 P(Y= y) 3a 8a² 4a² 8a
(b) Find P(Y> 1|Y ≤ 3).
(c) Hence, find the mean of Y.
Transcribed Image Text:(b) Find P(Y> 1|Y ≤ 3). (c) Hence, find the mean of Y.
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