Question

Edward owns 13 films.

8 of his films are thriller films.
He chooses one of his films at random.
What is the probability that it is not a thriller film?
Give your answer as a fraction in its simplest form.

Answer 1

5/13

Explanation:

The probability of an event is defined as the number of favorable outcomes divided by the total number of possible outcomes.

In this case, Edward owns 13 films, and 8 of them are thriller films. The probability of choosing a non-thriller film is the number of non-thriller films divided by the total number of films.

Number of non-thriller films = Total films - Thriller films

`\[ \text{Number of non-thriller films} = 13 - 8 = 5 \]`

So, the probability (P) of choosing a non-thriller film is given by:

`\[ P = \frac{\text{Number of non-thriller films}}{\text{Total number of films}} = (5)/(13) \]`

Therefore, the probability that Edward chooses a non-thriller film is
`\( (5)/(13) \)`, and this is in its simplest form.