Statistics and Probabilities
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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Statistics and Probabilities

Transcribed Image Text:The probability distribution for random variable Y is given in Table 2.
Table 2: Probability distribution for Y
y
4
10
P(Y=y)
0.12
0.18
0.30
(a)
Find :
i.
the value of s.
i.
standard deviation.
iii.
E(2Y + 6) + Var (3Y -5).
(b)
If T is a random variable with Binomial distribution of n=15 and
p=0.30, find:
i.
E(T).
i.
Var(T).
I.
P(T<4).
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