Question

A store surveyed their customers to find out their ages. The bar graph below shows the number of customers in each age group. What percent of customers surveyed were over 50%? Round your answer to 1 decimal place.

Answer 1

Bar graphs are used to represent data, where the vertical axis represents the frequency and the horizontal axis.

The percentage that is over 50 is 15.6%:

The data on the bar graph can be represented as:

Under 17 $\to$ 25

18 - 24 $\to$ 35

25 - 34 $\to$ 40

35 - 50 $\to$ 35

Over 50 $\to$ 25

So, the total customer surveyed are:

$Total = 25 + 35 + 40 + 35 + 25$

$Total = 160$

The percentage over 50 are:

$\%Over\ 50 = \frac{Over\ 50}{Total } * 100\%$

$\%Over\ 50 = \frac{25}{160} * 100\%$

$\%Over\ 50 = 0.15625* 100\%$

$\%Over\ 50 = 15.625\%$

Approximate

$\%Over\ 50 = 15.6\%$

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