Question

Two dice are thrown simultaneously and the sum of numbers appearing on them is noted. Fimd the probability that sum is (i) 7 (ii) 9.

Answer 1

Answer:

Step-by-step explanation:

Total number of outcomes = n = 36

Let A be the event that sum on the dice is 7.

=> (4,3) (3,4) (5,2) (2,5) (6,1) (1,6)

= m = 6

P(A) = m/n = 6/36 = 1/6

Let B be the event that sum on the dice is 9.

=> (6,3) (3,6) (4,5) (5,4)

= m = 4

P(B) = m/n = 4/36 = 1/9