In a survey of 1274 people, 852 people said they voted in a recent presidential election. Voting records show that 64% of eligible voters actually did vote. Given that 64% of eligible voters actually did vote, (a) find the probability that among 1274 randomly selected voters, at least 852 actually did vote. (a) P(Xgreater than or equals852)equals (Round to four decimal places as needed.)
In a survey of 1274 people, 852 people said they voted in a recent presidential election. Voting records show that 64% of eligible voters actually did vote. Given that 64% of eligible voters actually did vote, (a) find the probability that among 1274 randomly selected voters, at least 852 actually did vote. (a) P(Xgreater than or equals852)equals (Round to four decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
In a survey of 1274 people, 852 people said they voted in a recent presidential election. Voting records show that 64% of eligible voters actually did vote. Given that 64% of eligible voters actually did vote, (a) find the probability that among 1274 randomly selected voters, at least 852 actually did vote.
(a) P(Xgreater than or equals852)equals
(Round to four decimal places as needed.)
Expert Solution
Step 1
The question is about sampling dist. of sample proportion
Given :
Prop. of eligible voters actually did vote ( p ) = 0.64
Random selected no. of voters ( n ) = 1274
No. of people voted from n ( x ) = 852
To find :
a ) P ( X 852 )
Step by step
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