2. A bank randomly assigns PIN codes to new bank cards that are 6 digits long and the 6 digits are selected without

replacement from the numbers 1,2,3,4,5,6,7,8,9.

(a) [1] How many possible PINS could be created?

.6792hani Case

(b) [1] Find the probability that a PIN is divisible by 2.

(c) [1] Find the probability that a PIN is a number less than 250000.

(d) [2] Repeat c) but assuming that the digits are chosen with replacement.