22% of household are turned to the television show NBC Sunday Night Football. An advertiser wants to obtain a second opinion by conducting its own survey, and a pilot survey begins with 30 households...

22% of household are turned to the television show NBC Sunday Night Football. An advertiser wants to obtain a second opinion by conducting its own survey, and a pilot survey begins with 30 households having TV sets in use at the time of that same NBC Sunday Night Football broadcast.

A) Find the mean and standard deviation.

B) Find the probability that at least one household is tuned to NBC Sunday Night Football.

C) Find the probability that more than 5 households are tuned to NBC Sunday Night Football.