Question

Harry Ohme is in charge of the electronics section of a large department store. He has noticed
that the probability that a customer who is just browsing will buy something is 0.3. Suppose
that 15 customers browse in the electronics section each hour. Use Appendix Table 3 in the
back of the book to answer the following questions:
(a) What is the probability that at least one browsing customer will buy something during a
specifi ed hour?
(b) What is the probability that at least four browsing customers will buy something during a
specifi ed hour?
(c) What is the probability that no browsing customers will buy anything during a specified
hour?
(d) What is the probability that no more than four browsing customers will buy something
during a specified hour?

Answer 1

I can't understand tell me in proper words

Answer 2

I also not understand

this is a question bit I don't understand