A group of students and workers entering a metro station were asked whether they were riding the bus or the subway. The two-way table shows their answers.
Types of Transportation
| | Bus | Subway | Total |
| -------- | --- | ------ | ----- |
| Students | 27 | 21 | 48 |
| Workers | 42 | 76 | 118 |
| Total | 69 | 97 | |
How many people were polled?
A. 48
B. 69
C. 118
D. 166
Answer (2)
Add the number of students and workers to find the total number of people polled.
Total students: 48
Total workers: 118
Calculate the sum: 48 + 118 = 166
Explanation
Understand the problem We are given a two-way table that shows the number of students and workers who ride the bus or subway. We need to find the total number of people polled.
Plan the solution The total number of students is 48, and the total number of workers is 118. To find the total number of people polled, we add the number of students and the number of workers.
Set up the equation Total number of people polled = Total students + Total workers.
Calculate the total Total number of people polled = 48 + 118 = 166 .
State the final answer Therefore, the total number of people polled is 166.
Examples
Understanding how to read and interpret data from tables like this is useful in many real-life situations. For example, if you're planning an event and need to know how many people are likely to attend based on different categories (like age or interest), you could use a similar table to analyze past event data and make predictions. This helps in making informed decisions about resources, venue size, and other logistical aspects.
The total number of people polled, combining both students and workers, is 166. This is calculated by adding the total number of students (48) and the total number of workers (118). Hence, the final answer is option D. 166.
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