SOLUTION: In a survey of 1035 ​people, 802 people said they voted in a recent presidential election. Voting records show that 75​% of eligible voters actually did vote. Given that 75​%

Algebra ->  Probability-and-statistics -> SOLUTION: In a survey of 1035 ​people, 802 people said they voted in a recent presidential election. Voting records show that 75​% of eligible voters actually did vote. Given that 75​%      Log On


   

Question 1182751: In a survey of 1035 ​people, 802 people said they voted in a recent presidential election. Voting records show that 75​% of eligible voters actually did vote. Given that 75​% of eligible voters actually did​ vote, find the probability that among 1035 randomly selected​ voters, at least 802 actually did vote.​
P(X ≥ 802​) = __​(Round to four decimal places as​ needed.)
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
n = 1035
p = 0.75
q = 0.25

mu=np=1035%2A0.75=776.25
sigma=sqrt%28npq%29=sqrt%281035%2A0.75%2A0.25%29=13.93063172%29

P(X ≥ 801.5) = 0.0350

Find that using z-score and a table, or use technology 

Edwin