Consider rolling two number cubes, each of which has its faces numbered from 1 to 6. The cubes will be rolled and the sum of the numbers landing face up will be recorded. Let the event E represent the event of rolling a sum of 5. How many outcomes are in the collection for event E ?

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Answer:

There are 4 outcomes out of 36 whose sum is 5.

Step-by-step explanation:

Consider the provided information.

Rolling two number cubes, each of which has its faces numbered from 1 to 6. The cubes will be rolled and the sum of the numbers landing face up will be recorded.

The number of outcomes are 36.

Sample Space of Rolling a Pair of Dice  is shown below:

(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)

(2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)

(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6)

(4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)

(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6)

(6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)

Let the event E represent the event of rolling a sum of 5.

The required number of outcomes are: (1, 4), (2, 3), (3, 2) and (4, 1).

Hence, there are 4 outcomes out of 36 whose sum is 5.

fichoh

The Number of outcomes which represents the number of required outcomes for obtaining a sum of 5 is 4.

The sample space for rolling two number cubes cubes could be created in other to view the possibilities.

From the sample space attached, the different outcomes for obtaining a sum of 5 include :

  • (4, 1), (1, 4), (2, 3), (3, 2)

Therefore, there are four possible outcomes for Event E which is the sum of 5 from two die roll.

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