Trevor is interested in purchasing the local hardware/sportinggoods store in the small town of Dove Creek, Montana. Afterexamining accounting records for the past several years, he foundthat the store has been grossing over $850 per day about 70% of thebusiness days it is open. Estimate the probability that the storewill gross over $850 for the following. (Round your answers tothree decimal places.)
(a) at least 3 out of 5 business days
(b) at least 6 out of 10 business days
(c) fewer than 5 out of 10 business days
(d) fewer than 6 out of the next 20 business days
(e) more than 17 out of the next 20 business days
