Suppose that 35% of all voters prefer Candidate A. If 4 people are chosen at random...
Assume that a procedure yields a binomial distribution with a trial repeated n=5n=5 times. Find the probability distribution given the probability p=0.614p=0.614 of success on a single trial. Report answers accurate to 4 decimal places. k P(X = k) 0 1 .0682 2 3 4 .2743 5 .0872 2.) Suppose that 65% of all voters prefer Candidate A. If 10 people are chosen at random for a poll, what is the probability that exactly 3 of them favor Candidate A?
co DOdt this question In a population where 40 % of voters prefer Candidate A, an organization conducts a poll of 18 voters. Find the probability that 8 of the 18 voters will prefer Candidate A. (Report answer accurate to 3 decinmal ala
In a population where 62%62% of voters prefer Candidate A, an organization conducts a poll of 1818 voters. Find the probability that 11 of the 18 voters will prefer Candidate A. (Report answer accurate to 4 decimal places.)
In a population where 29%29% of voters prefer Candidate A, an organization conducts a poll of 55 voters. Find the probability that 1 of the 5 voters will prefer Candidate A. (Report answer accurate to 4 decimal places.)
1.)
Suppose that a box contains 8 cameras and that 3 of them are
defective. A sample of 2 cameras is selected at random. Define the
random variable X as the number of defective cameras in the
sample.
Hint: Make a probability tree for selecting 2 cameras without
replacement.
Write the probability distribution for X.
k
P(X=k)
What is the expected value of X?
2.)
Assume that a procedure yields a binomial distribution with a
trial repeated n=5n=5 times. Find...
Suppose that of all voters in Florida, 40% (p=.4) are in favorite of candidate Brown for Governor. Pollsters take a sample of 2400 voters. What proportion of the sample would be expected to favor candidate Brown? (show your work)
A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at random, what is the probability that exactly 3 of them favor the new building project?
A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at random, what is the probability that exactly 1 of them favor the new building project?
Suppose that 60 percent of the voters in a particular region support a candidate. Find the probability that a sample of 1,000 voters would yield a sample proportion in favor of the candidate within 4 percentage points of the actual proportion. .0155 .9484 .9952 .9902
Suppose that 60 percent of voters in a particlular region support a candidate. Find the probability that a sample of 1,000 voters would yield a sample proportion in favor of the candidate within 3 percentage points of the actual proportion.