Question

a store surveyed 155 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 25 - 34? round your answer to 1 decimal place. % how many customers surveyed were 34 years old or younger? enter an integer or decimal number more.. question help: written example message instructor

Explanation:

Step1: Determine number in 25 - 34 group

From the bar - graph, the number of customers in the 25 - 34 age group is 45.

Step2: Calculate percentage of 25 - 34 group

The total number of customers surveyed is 155. The percentage of customers in the 25 - 34 age group is $\frac{45}{155}\times100\%$.
\[

$$\begin{align*} \frac{45}{155}\times100\%&=\frac{4500}{155}\%\\ &\approx29.0\% \end{align*}$$

\]

Step3: Determine number 34 or younger

The number of customers 34 years old or younger is the sum of the number of customers in the 17 and under, 18 - 24, and 25 - 34 age groups. From the bar - graph, the number of customers in 17 and under is 25, in 18 - 24 is 35, and in 25 - 34 is 45. So the total number of customers 34 years old or younger is $25 + 35+45=105$.

Answer:

29.0%
105