Question

Rina spins the spinner below 30 times. A success occurs when the spinner lands on a number that is greater than 6. What is the probability of a success and a failure for this experiment?

Answer 1

Success: 1/4

Failure: 3/4

Explanation:

A success occurs when the spinner lands on a number that is greater than 6 that is we will take the numbers which are greater than 6 but less than 30 as the spinner is spinned below 30 times.

Therefore the total number of outcomes will be: 30-6= 24

Hence, the probability of a success of the experiment will be:
`(Number of outcomes in which success occurs)/(Total number of outcomes)`

=
`(6)/(24)`

=
`(1)/(4)`

the probability of a failure of the experiment will be= 1- Probability of a success of the experiment

=
`1-(1)/(4)`

=
`(3)/(4)`

Answer 2

B. P(success)=1/4,P(failure)=3/4