mpling a student on campus and finding that they are wearing a red shirt is .3.  what is the probability of sampling

The probability of randomly sampling someone in my neighborhood and finding that they own a pet is 0.7.  You randomly sample 6 people in my neighborhood.  What is the probability that exactly 5 of them own a pet in any order?  Give your answer as 0.XX

Suppose you want to find out how many people support Policy X. A standard polling approach is to just ask N many people whether or not they support Policy X, and take the fraction of people who say yes as an estimate of the probability that any one person supports the policy. Suppose that the probability someone supports the policy is p, which you do not know. Let pn be the number of people polled who supported the policy, divided by the total number of people polled N.

Suppose that the probability that a child living in an urban area in the United States is obese is 20%. If a social worker sees 15 children living in urban areas, what is the probability that 5 are obese? Enter response as .xxxx