the probability that an insurance agent will sell a life insurance policy to someone who has been randomly selected from the telephone directory is 0.15. if an insurance agent calls 6 persons, what is the probability that he will sell no fewer than 4 policies?
i have tried to sort this problem out but no way, pls help!
Hello, lawochekel!
the probability that an insurance agent will sell a life insurance policy to someone
who has been randomly selected from the telephone directory is 0.15.
if an agent calls 6 persons, what is the probability that he will sell no fewer than 4 policies?
Not sure what you mean by "sort this problem out",
. . but you must have done some Thinking, right?
For example, "no fewer than 4 sales" means 4 sales or 5 sales or 6 sales.
You should be familiar with Binomial Probability (or Bernoulli trials),
. . or you should not have been assigned this problem.