NBT NBT Quantitative Literacy: Charts, Tables and Graphs 7

Question 1

A cumulative frequency table shows that 48 out of 80 learners scored below 60%. What percentage scored 60% or above?

Accepted Answer

40%

Answer

Scored 60% or above = 80 − 48 = 32; percentage = 32/80 × 100% = 40%.

Question 2

A broken-line graph shows stock prices. The graph has a gap (break) in the y-axis starting from 0. This is likely intended to:

Accepted Answer

Emphasise small differences between prices

Answer

Breaking the y-axis allows small differences to look more dramatic by zooming in on the relevant range.

Question 3

A table shows that a machine produces 45 items per hour. How many hours does it take to produce 630 items?

Accepted Answer

14 hours

Answer

Time = 630 ÷ 45 = 14 hours.

Question 4

A bar chart compares male and female voter turnout across three provinces. Province B shows the greatest gap between male and female turnout. This means:

Accepted Answer

The difference between male and female turnout is largest in Province B

Answer

The largest gap between the two bars in Province B means male and female turnout differ the most there.

Question 5

A pie chart has 6 equal sectors. Each sector represents:

Accepted Answer

60°

Answer

360° ÷ 6 = 60° per sector.

(NBT) National Benchmark Test Practice Test

(NBT) National Benchmark Test Practice Test

NBT NBT Quantitative Literacy: Charts, Tables and Graphs 7