Answer Happy

here is the question please solve it correctly thank you
.
2. A survey showed that only 37% of households are using landline phones (A land line phone is one with a line that goes to the house and the phone number is assigned to the house. It is not mobile.) If 12 people are asked if they have a land line phone find:

A) Find the probability that at least 5 have a landline. g) Find the probability that 12 or fewer have a landline h) Find the probability that none have a landline. a i) ) Find the mean, variance and standard deviation of this binomial distribution.