A random vartable X with probability density function fo) - 1.5x? for -1
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 9E
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Question
Transcribed Image Text:QUESTION5
A random variable X with probability density function fox)-1.5x2 for -1 <x<1 has variance-
Oa0
Ob0.775
2906
O d. 0.35
QUESTION 6
In a certain village accidents occur infrequently. It is known that the probability of an accident on any given day is 0.02 and accidents are independent of
each other. What is the probability that in any given period of 250 days there will be an accident on one day? Use Poisson approximation.
O a. 0.073
O b. 0.034
O c.0.966
O d. 0.271
QUESTION 7.
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