four fair dice `D_1, D_2,D_3 and D_4` each having six faces numbered 1,2,3,4,5 and 6 are rolled simultaneously. The probability that `D_4` shows a number appearing on one of `D_1,D_2,D_3` is

Four fair dice D_(1),D_(2),D_(2) and D_(4) each having six faces numbered 1, 2, 3, 4, 5 and 6 are rolled simultaneously. The probability that shows a number appearing on one of D_(1),D_(2) and D_(2) is:

Two dices are rolled simultaneously. Quantity 1: Probability that the sum of the numbers that appeared is a multiple of 4. Quantity 2: 1/3

Two dice are rolled simultaneously.The probability that they show different faces is (2)/(3) (b) (1)/(6)(c)(1)/(3)(d)(5)/(6)

A die is rolled, then the probability that a number 1 or 6 may appear is a. 2/3 b. /6 c. 1/3 d. 1/2

The mean and S.D of 1,2,3,4,5,6 is

Two coins are tossed simultaneously.The probability of getting atmost one head is (1)/(4) (b) (3)/(4)(c)(1)/(2)(d)(1)/(4)

The mean and S.D.of 1,2,3,4,5,6 is

A four figure number is formed of the figures 1,2,3,4,5 with no repetitions.The probability that the number is divisible by 5 is 3/4 b.1/4 c.1/8 d.none of these