Mean, Variance, and Standard Deviation

You want to determine the probability that when seven consumers are randomly selected, exactly two of them are comfortable with delivery by drones. Assume that 45% of consumers are comfortable with the drones based on a Pitney Bowers survey.

1. Identify the values of n, x, p, and q.
2. Determine the mean and the standard deviation.
3. Report the probability that exactly two consumers are comfortable with delivery of drones, P(x=2).