uppose that the random variable X has the probability density function for - 1s x s1 c(1– x²) (x) elsewhere ind the probability that X is in the interval of [0,1/2] (A) 837/2000 B) 21/32 c) 269/2000 (D) 11/32

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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Suppose that the random variable X has the probability density function
c(1– x²)
for -1s x <1
f(x) = {
elsewhere
Find the probability that X is in the interval of [0,1/2]
A
837/2000
B) 21/32
C) 269/2000
D
11/32
Transcribed Image Text:Suppose that the random variable X has the probability density function c(1– x²) for -1s x <1 f(x) = { elsewhere Find the probability that X is in the interval of [0,1/2] A 837/2000 B) 21/32 C) 269/2000 D 11/32
There is a 95% chance of passing any exam. What is mean in number of attempts until third exam is passed?
A) 0.12
1.05
c) 2.25
D
1.00
Transcribed Image Text:There is a 95% chance of passing any exam. What is mean in number of attempts until third exam is passed? A) 0.12 1.05 c) 2.25 D 1.00
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