A survey found that 34% of U.S. adults have hidden purchases from their spouses. You randomly select

Question:

A survey found that 34% of U.S. adults have hidden purchases from their spouses. You randomly select 200 adults with spouses. What is the probability that exactly 68 of them have hidden purchases from their spouses? Use technology to find the probability.
a. Identify n, p, and x.
b. Calculate the binomial probability.
c. Interpret the results.
d. Determine whether the event is unusual. Explain.