Question

What is the chance of throwing at least 7 in a single cast with 2 dice?​

Answer 1

Answer:

Given: 2 dice thrown

To find: the chance of throwing at least 7

Sol: According to the question, n(S)=6×6=36

Favorable outcomes for getting at least 7 are (1,6),(2,5),(2,6),(3,4),(3,5),(3,6),(4,3),(4,4),(4,5),(4,6),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2)

(6,3),(6,4),(6,5),(6,6)

n(E)=21

Hence, the chance of throwing at least 7 =

36/21

=12/7