A car dealership has 6 red, 9 silver, and 5 black cars on the lot. Ten cars are randomly chosen to be displayed in front of the dealership. Complete parts (a) through (c) below. (a) Find the probability that 4 cars are red and the rest are silver. (Round to four decimal places as needed.) (b) Find the probability that 5 cars are red and 5 are black. (Round to six decimal places as needed.) (c) Find the probability that exactly 6 cars are red. (Round to five decimal places as needed.)