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Question

asked Sep 13, 2022 118k views

1 Answer

Friend Of Kim · Answer 1 · 2022-09-20T11:57:28+0000

Answer:

P(Sum = 9) = (1)/(9)

Explanation:

Given

Outcomes of rolling two dice

Required

P(Sum = 9)

From the given outcomes, we have:

n(S) = 36 -- the sample size

$Sum = 9:=\{(3,6),(4,5),(5,4),(6,3)\}$

So.

n(Sum = 9) = 4

The probability is:

P(Sum = 9) = (n(Sum = 9))/(n(S))

P(Sum = 9) = (4)/(36)

Simplify

P(Sum = 9) = (1)/(9)