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7 votes
7 votes
Michelle has a fair number cube. Each face has a different number from 1 through 6. She will roll the number cube twice. What is the probability that she will roll an even number on the first roll and a 5 on the second roll?

User Meisha
by
2.9k points

2 Answers

12 votes
12 votes

Answer:

2/3

Step-by-step explanation:

3/6 + 1/6 = 4/6 = 2/3

User LadIQe
by
2.5k points
19 votes
19 votes

Answer:

Probability is 1/12.

Step-by-step explanation:

So the chance that she will roll an even number on her first roll is 3 out of 6, or simplified 1 out of 2. On her second roll, the probability that she will roll a 5 is 1 out of 6. To roll these both as a pair consecutively, you would need to multiply their probabilities. You do
(1)/(2) x
(1)/(6) which is equal to
(1)/(12) .

User Anand Savjani
by
2.7k points