where c E R is a constant. a. Find the value of c that makes this function a valid probability density function. b. Find the cumulative distribution function, F(x), of X. c. What is the probability that more than 75% (0.75) of voters approve of the new proposal ?

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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2. Define the random variable X as the proportion of voters in a certain county that approve of a
new proposal,
| cx (1 – x) 0 < x < 1
f (x)
otherwise
p
er
Transcribed Image Text:2. Define the random variable X as the proportion of voters in a certain county that approve of a new proposal, | cx (1 – x) 0 < x < 1 f (x) otherwise p er
where c E R is a constant.
a. Find the value of c that makes this function a valid probability density function.
b. Find the cumulative distribution function, F(x), of X.
c. What is the probability that more than 75% (0.75) of voters approve of the new proposal ?
d. What is the probability that exactly 75% of voters approve of the new proposal ?
Transcribed Image Text:where c E R is a constant. a. Find the value of c that makes this function a valid probability density function. b. Find the cumulative distribution function, F(x), of X. c. What is the probability that more than 75% (0.75) of voters approve of the new proposal ? d. What is the probability that exactly 75% of voters approve of the new proposal ?
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