Based on results from a Bradley Corporation poll, assume that 70% of adults always wash their hands

Question:

Based on results from a Bradley poll, assume that 70% of adults always wash their hands after using a public restroom.
a. Find the probability that among 8 randomly selected adults, exactly 5 always wash their hands after using a public restroom.
b. Find the probability that among 8 randomly selected adults, at least 7 always wash their hands after using a public restroom.
c. For groups of 8 randomly selected adults, find the mean and standard deviation of the numbers in the groups who always wash their hands after using a public restroom.
d. If 8 adults are randomly selected and it is found that exactly 1 of them washes hands after using a public restroom, is that a significantly low number?
Corporation
A Corporation is a legal form of business that is separate from its owner. In other words, a corporation is a business or organization formed by a group of people, and its right and liabilities separate from those of the individuals involved. It may...