Question

two dice are boiled at the same time the chance of the emergence of the second number of dice 5 or 9 is?​

Answer 1

Two dice are thrown together at one time, the chance of appearing 5 or 9 dice is 2/9.

Discussion :

Opportunity is the comparison of the number of events with the number of sample rooms.

Opportunity formula:

P (A) = n (A) / n (S)

with

n (A) = number of events A

n (S) = number of sample rooms

Many sample room members throw two dice :

n (S) = 6²

n (S) = 36

↓↓↓↓

Suppose :

K = 5 occurrences of dice appear

K = {(1, 4), (2, 3), (3, 2), (4, 1)}

Many members of events K = n (K)

n (K) = 4

L = the occurrence of 9 dice appears

L = {(3, 6), (4, 5), (5, 4), (6, 3)}

Many members of events L = n (L)

n (L) = 4

↓↓↓↓

Chances of appearing 5 or 9 dice:

P (K / L) = n (K + L) / n (S)

P (K / L) = (4 + 4) / 36

P (K / L) = 8/36

P (K / L) = 2/9