- Refer to the pie chart. If 30 students prefer action movies, about how many total students were surveyed?
Answer: 120
The action slice measures 90°. A full circle is 360°, so 90°/360° = 1/4 of respondents. If 1/4 equals 30 students, total equals 30 × 4 = 120.
- Based on the temperature line graph, which day recorded the median temperature?
Answer: Wednesday
Temperatures: Mon 60, Tue 72, Wed 68, Thu 75, Fri 80. Ordered: 60,68,72,75,80 → median 68, which is Wednesday.
- Based on the bar graph, which country received the third-highest number of votes in the class survey?
Answer: Brazil
Bar heights (votes): Japan 18, Italy 15, Brazil 12, Canada 9, Egypt 6. The descending order is Japan, Italy, Brazil; hence Brazil is third.
- Use the flowchart below. If the input number is 5, what value is displayed at the Output box?
Answer: 20
Flowchart steps: multiply by 2 (5→10), add 5 (10→15), test 'Is result >12?' Yes, so go to branch that adds 5 more: 15→20. Output is 20.
