Question

A spinner has 5 equal sections marked 1 through 5. What is the probability of not landing on 4?

Answer 1

`4/5`

Explanation:

We have a spinner that can land on numbers 1 through 5 with an equal chance. What is the probability of not landing on 4?

The probability of not landing on 4 is the same as `1-P("landing on 4")`.

`P("landing on 4")=1/5` and so

`1-P("landing on 4")=1-1/5=4/5`