just count the ways the event can happen
even:
11 13 15
22 24 26
31 33 35
42 44 46
51 53 55
62 64 66
So, there are 18 ways to roll an even.
There are 4 ways to get a five: 14 23 32 41
So, P(even or 5) = 20/36
Can someone please help me understand this. This is not graded or anything I just want to know how to do this.
- Chloe rolls two-sided number cubes and adds the numbers showing on the cubes. What is the probability that the sum of the number cubes is even or five?
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1 answer