Question

Approximately 24 out of 100 people over the age of 12 smoke. How many smokers would you expect in a group of 950 people over the age of 12?

Answer 1

228 people

Explanation:

Approximately 24 out of 100 people over the age of 12 smoke.

The relative frequency of a person over the age of 12 smoking is:

`(24)/(100)`

Thus, in a group of 950 people over the age of 12:

`\begin{gathered} \text{The number of expected outcome}=\text{ Relative Frequency }*\text{ Total number of trials} \\ =(24)/(100)*950 \\ =(12*2)/(50*2)*19*50 \\ =12*19 \\ =228 \end{gathered}`

In a group of 950 people over the age of 12, we would expect 228 people to be smokers.