NBT NBT Quantitative Literacy: Charts, Tables and Graphs 3

Question 1

A line graph shows electricity usage: Month 1 = 300 kWh, Month 2 = 350 kWh, Month 3 = 280 kWh. In which month was usage the lowest?

Accepted Answer

Month 3

Answer

Month 1

Answer

Month 2

Answer

All months were equal

Question 2

A pie chart shows 5 categories. If one category represents 90°, how many of this sector fit in the full pie?

Accepted Answer

4

Answer

3

Answer

5

Answer

6

Question 3

A table records rainfall (mm): Mon 12, Tue 8, Wed 0, Thu 15, Fri 5. What is the mean daily rainfall?

Accepted Answer

8 mm

Answer

40 mm

Answer

12 mm

Answer

10 mm

Question 4

A misleading graph uses a y-axis that starts at 950 instead of 0. A bar representing 1 000 looks twice as tall as one representing 960. What is the actual percentage difference between them?

Accepted Answer

Approximately 4%

Answer

Approximately 50%

Answer

Exactly 100%

Answer

Approximately 2%

Question 5

A grouped frequency table shows scores: 40–49 (5 learners), 50–59 (12 learners), 60–69 (8 learners). How many learners scored below 60?

Accepted Answer

17

Answer

20

Answer

25

Answer

5

Question 6

A bar chart shows that Store X sold 240 items and Store Y sold 180 items. What is the ratio of Store X sales to Store Y sales?

Accepted Answer

4 : 3

Answer

3 : 4

Answer

2 : 3

Answer

5 : 4

Question 7

A graph shows that a car travels at a constant speed. The distance at 2 hours is 160 km and at 5 hours is 400 km. What is the speed?

Accepted Answer

80 km/h

Answer

160 km/h

Answer

40 km/h

Answer

100 km/h