Question

Two dice are thrown at the same time. Find the probability that the

sum of the two numbers on the dice is (i) 7? (ii) at least 9?​

Answer 1

Answer:

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Step-by-step explanation:

i).s ={(1,6),(2,5),(2,6),(3,4),(4,3),(5,2),(6,1)}

n(s)=7

bbyyy

Answer 2

Hey...!!

(i) Favourable observations :-

6+1, 4+3, 1+6, 3+4, 5+2, 2+5

•°• Probability= (no. of favourable obsv.)/ (total no. of obsv.)

P = 6/12 = 1/2

(ii) Favourable observations :-

5+4, 4+5, 6+3, 3+6. (there are 4 obsv. favourable)

Probability= (no. of favourable obsv.)/ (total no. of obsv.)

•°•, Probability = 4/12 = 1/3