Answer
a. 556 integers from 1 to 1000 are multiples of 2 or 9
b. 139/250 = 55.6% probability of a random integer from 1 to 1000 being a multiple of 2 or 9
c. 444 integers are neither multiples or 2 or 9
Work Step by Step
a. 1000 / 2 = 500, 1000/9 = 111, 1000/(2*9) = 55
500 + 111 – 55 = 556 integers from 1 to 1000 are multiples of 2 or 9
b. 556/1000 = 139/250 = 55.6% probability of a random integer from 1 to 1000 being a multiple of 2 or 9
c. 1000 – 556 = 444 integers are neither multiples or 2 or 9
