Data & Graphs Quiz

Question 1

What type of graph uses bars of different heights to compare data?

Accepted Answer

Bar chart

Answer

Line graph

Answer

Pie chart

Answer

Scatter graph

Question 2

What does a pie chart show?

Accepted Answer

Parts of a whole as sectors

Answer

Changes over time

Answer

Relationships between two variables

Answer

Frequency of data

Question 3

A pie chart sector represents 90°. What percentage of the total does it represent?

Accepted Answer

25%

Answer

9%

Answer

33%

Answer

90%

Question 4

What type of graph is best for showing how something changes over time?

Accepted Answer

Line graph

Answer

Bar chart

Answer

Pie chart

Answer

Scatter graph

Question 5

What is a frequency table?

Accepted Answer

A table showing how often each value occurs

Answer

A table showing speed of data collection

Answer

A type of pie chart

Answer

A graph of related variables

Question 6

In a bar chart, 30 students prefer football and 20 prefer tennis. The bar for football is 6 cm tall. How tall should the tennis bar be?

Accepted Answer

4 cm

Answer

2 cm

Answer

3 cm

Answer

5 cm

Question 7

What does a scatter graph show?

Accepted Answer

The relationship between two variables

Answer

Data split into sectors

Answer

Changes in one value over time

Answer

Frequencies of different categories

Question 8

What does a positive correlation on a scatter graph look like?

Accepted Answer

Points sloping upward left to right

Answer

Points scattered randomly

Answer

Points sloping downward left to right

Answer

A perfect horizontal line

Question 9

What is a tally chart used for?

Accepted Answer

Recording data as it is collected

Answer

Displaying final data

Answer

Calculating percentages

Answer

Drawing a line graph

Question 10

In a pie chart representing 200 students, a sector for 'Science' covers 72°. How many students prefer Science?

Accepted Answer

40

Answer

20

Answer

30

Answer

72

Question 11

What is a histogram?

Accepted Answer

A bar chart for continuous data with no gaps between bars

Answer

A bar chart with gaps between bars

Answer

A type of pie chart

Answer

A pictogram

Question 12

What does 'negative correlation' mean?

Accepted Answer

As one variable increases, the other decreases

Answer

There is no relationship between variables

Answer

Both variables decrease together

Answer

The data is incorrect

Question 13

A line graph shows temperatures: 5°C, 8°C, 12°C, 9°C, 6°C over 5 days. What is the range?

Accepted Answer

7°C

Answer

5°C

Answer

6°C

Answer

8°C

Question 14

What is a pictogram?

Accepted Answer

A graph using symbols to represent data

Answer

A pie chart using pictures

Answer

A 3D bar chart

Answer

A type of scatter graph

Question 15

In a grouped frequency table, the class interval '20 ≤ x < 30' means:

Accepted Answer

Values from 20 up to but NOT including 30

Answer

Values exactly 20 or 30

Answer

Values between 20 and 30 inclusive

Answer

Values from 21 to 29 only

Question 16

What does the line of best fit on a scatter graph represent?

Accepted Answer

The trend or average relationship between variables

Answer

The exact data points

Answer

The highest and lowest values

Answer

The median value

Question 17

What type of data is 'favourite colour'?

Accepted Answer

Categorical

Answer

Continuous

Answer

Discrete

Answer

Ordinal

Question 18

Which chart is most suitable for comparing sales figures across 5 different products?

Accepted Answer

Bar chart

Answer

Line graph

Answer

Pie chart

Answer

Scatter graph

Question 19

In a stem-and-leaf diagram, the stem '3' with leaves '2, 5, 8' represents which values?

Accepted Answer

32, 35, 38

Answer

3, 2, 5, 8

Answer

23, 53, 83

Answer

3.2, 3.5, 3.8

Question 20

What is a dual bar chart?

Accepted Answer

A bar chart showing two sets of data side by side

Answer

A bar chart with two axes

Answer

Two separate bar charts on one page

Answer

A bar chart with bars split in two colours