Question

a survey asked how many children people have. the survey results are given in the histogram above. find the relative frequency of people who have 3 children. write as a fraction.

Explanation:

Step1: Find the frequency of people with 3 children

From the histogram, the frequency of people with 3 children is 4.

Step2: Find the total frequency

The total frequency is \(2 + 3+4 + 5=14\).

Step3: Calculate the relative frequency

The relative - frequency formula is \(\text{Relative Frequency}=\frac{\text{Frequency of the class}}{\text{Total Frequency}}\). So the relative frequency of people with 3 children is \(\frac{4}{14}=\frac{2}{7}\).

Answer:

\(\frac{2}{7}\)