Question

Asked Apr 30, 2019

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Step 1

**Addition rule of probability:**

Addition rule of probability indicates the happening either of the events that are involved.

Consider two events *A* and *B*, the happening of either of the events *A* or *B* is obtained as follows:

Step 2

**Obtain the probability of rolling an even number or a number less than 3.**

A six sided die will have the numbers 1, 2, 3, 4, 5 and 6.

The outcomes of the sample space are *S* = {1, 2, 3, 4, 5, 6}.

That is, the total number of possible outcomes is *n*(*S*) = 6.

Denote the event “even number” as *A.*

The possible outcomes for the event “even number” are {2, 4, 6}.

That is, the number of favourable outcomes for *A *is *n *(*A*) = 3.

Denote the event “number less than 3” as *B.*

The possible outcomes for the...

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