The television show Law & Disorder has been successful for many years. That show recently had a share of 23, which means, that among the TV sets in use, 23% were tuned to Law & Disorder. An advertiser wants to verify that 23% share value by conducting its own survey, and a pilot survey begins with 12 households have TV sets in use at the time of a Law & Disorder broadcast.

Find the probability that none of the households are tuned to Law & Disorder.
P(none) =


Find the probability that at least one household is tuned to Law & Disorder.
P(at least one) =


Find the probability that at most one household is tuned to Law & Disorder.
P(at most one) =


If at most one household is tuned to Law & Disorder, does it appear that the 23% share value is wrong? (Hint: Is the occurrence of at most one household tuned to Law & Disorder unusual?)

yes, it is wrong
no, it is not wrong