Question

You spin the spinner once.What is P(4)?Write your answer as a percentage.%

Answer 1

The spinner on the picture is divided into four equal parts labeled 4; 5; 6; 7.

To determine the probability, that the result will be 4 after spinning the spinner once, you have to divide the number of favorable outcomes by the total number of outcomes.

For the event "the result is 4"

There is only one part of the spinner labeled with the number four, so the number of favorable outcomes is 1.

As mentioned before, the spinner is divided into four, so the total number of outcomes is 4.

You can determine the probability of spinning 4 as follows:

`\begin{gathered} P(4)=\frac{nº\text{favorable outcomes}}{\text{total number of outcomes}} \\ P(4)=(1)/(4)\approx0.25 \end{gathered}`

Multiply the result by 100 to express it as a percentage:

`0.25\cdot100=25\%`

The probability of spinning a 4 is 25%