(a) Calculate how many different numbers altogether can be formed by taking one, two, three and four digits from the digits 9, 8, 3 and 2, repetitions not being allowed.

(b) Calculate how many of the numbers in part

(a) are odd and greater than 800.

(c) If one of the numbers in part

(a) is chosen at random, calculate the probability that it will be greater than 300. (L. Additional)