Question

Kaiser Permanente has salespeople to call potential clients to see if they will use their insurance. There's a 5% chance a call will result in them starting a new insurance plan. After 200 calls, what’s the probability that a salesperson getting AT LEAST 12 customers to start a new insurance plan? Use the binomial distribution function in Excel to answer this question.

Answer 1

Here p=0.05 is same for all, n=200 is constant, events are independent and only two outcomes

Hence properties of binomial are satisfied

So we will find probability using binomial excel function