Question

Karl wants to raise money for charity. He designs a game for people to play.

Karl uses a ten sided dice for the game. The dice is numbered 1 to 10.
Each person will roll the dice once. A person wins the game if the dice lands on a multiple of 4.
Ali plays the game once,
a) Work out the probability that Ali will win the game.
(2 m

Answer 1

0.2 = 20% probability that Ali will win the game.

Explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Total outcomes:

The 10 sides that the dice can land, which means that
`T = 10`

Desired outcomes:

Sides that are multiple of 4, that is, side 4 and side 8, so
`D = 2`

Work out the probability that Ali will win the game.

`p = (D)/(T) = (2)/(10) = 0.2`

0.2 = 20% probability that Ali will win the game.