The television show Degenerate Housewives has been successful for many years. That show recently had a share of 20, meaning that among the TV sets in use, 20% were tuned to Degenerate Housewives. Assume that an advertiser wants to verify that 20% share value by conducting its own survey, and a pilot survey begins with 13 households have TV sets in use at the time of a Degenerate Housewives broadcast. (Round answers to four decimal places.) Find the probability that none of the households are tuned to Degenerate Housewives. P(none) =