- In A Survey Of 1002 People 642 People Said They Voted In A Recent Presidential Election Voting Records Show That 61 O 1 (20.48 KiB) Viewed 65 times
- In A Survey Of 1002 People 642 People Said They Voted In A Recent Presidential Election Voting Records Show That 61 O 2 (18.59 KiB) Viewed 65 times
In a survey of 1002 people, 642 people said they voted in a recent presidential election. Voting records show that 61% of eligible voters actually did vote. Given that 61% of eligible voters actually did vote, (a) find the probability that among 1002 randomly selected voters, at least 642 actually did vote. (b) What do the results from part (a) suggest? (a) P(X 2 642)=(Round to four decimal places as needed.)
Assume that 35.3% of people have sleepwalked. Assume that in a random sample of 1510 adults, 573 have sleepwalked. a. Assuming that the rate of 35.3% is correct, find the probability that 573 or more of the 1510 adults have sleepwalked. b. Is that result of 573 or more significantly high? c. What does the result suggest about the rate of 35.3%? a. Assuming that the rate of 35.3% is correct, the probability that 573 or more of the 1510 adults have sleepwalked is