The average price of a television on a certain Web site is ?$770. Assume the price of these televisions follows the normal distribution with a standard deviation of ?$170. Complete parts a through d below.
a. What is the probability that a randomly selected television from the site sells for less than ?$700? ____ ?(Round to four decimal places as? needed.)
b. What is the probability that a randomly selected television from the site sells for between ?$400 and ?$500 ____ ?(Round to four decimal places as? needed.)
c. What is the probability that a randomly selected television from the site sells for between ?$900 and 1,000?? ____ ?(Round to four decimal places as? needed.)
d. There are 14 televisions on the site. How many televisions are within a ?$750 budget? There are ___ televisions on the site that are within a ?$750 budget.
?(Round down to the nearest whole? number.)