About this Study Set
This study set covers Data Science through
18 practice questions.
Basic concepts of data collection, organisation, and representation for primary students. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Data Science Foundations study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which type of graph is specifically designed to show how parts of a whole compare to each other?
-
A
Bar graph
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B
Line graph
-
C
Pie chart
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D
Histogram
2
What is the term for the value that appears most frequently in a set of data?
-
A
Mean
-
B
Median
-
C
Mode
-
D
Range
3
In a data table, what is the vertical column of information usually called?
-
A
Field
-
B
Record
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C
Entry
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D
Row
4
Which of these is a way to collect data by asking a specific question to a group of people?
-
A
Simulation
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B
Survey
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C
Observation
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D
Experiment
5
What is the difference between the highest and lowest values in a data set called?
-
A
Average
-
B
Total
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C
Range
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D
Frequency
6
When we represent data using pictures or icons, what is this type of graph called?
-
A
Pictograph
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B
Scatter plot
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C
Stem-and-leaf plot
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D
Box plot
7
What do we call the middle value when a set of numbers is arranged from smallest to largest?
-
A
Mean
-
B
Median
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C
Mode
-
D
Sum
8
Which tool is most commonly used to record observations about the weather over several weeks?
-
A
Frequency table
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B
Tally chart
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C
Venn diagram
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D
Flowchart
9
What does a 'data point' represent?
-
A
The entire data set
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B
A single piece of information
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C
The title of a graph
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D
The range of the data
10
If a bar graph has bars that are not touching, what type of data does it likely represent?
-
A
Continuous data
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B
Categorical data
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C
Time-series data
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D
Ratio data
11
What is the name for the sum of all numbers in a set divided by the count of the numbers?
-
A
Average (Mean)
-
B
Median
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C
Mode
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D
Standard deviation
12
In a Venn diagram, what does the overlapping section represent?
-
A
Data that belongs to neither group
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B
Data that belongs to both groups
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C
The total number of items
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D
Data that is missing
13
Which term describes data that is sorted into groups, such as colours or animal types?
-
A
Numerical data
-
B
Categorical data
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C
Random data
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D
Continuous data
14
What is the primary purpose of a tally mark?
-
A
To show the average
-
B
To count occurrences quickly
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C
To display percentages
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D
To calculate the range
15
When looking at a line graph, what does a steep upward slope represent?
-
A
A decrease in value
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B
No change in value
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C
A rapid increase in value
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D
A stable average
16
Which of these is considered a 'quantitative' piece of data?
-
A
The colour of a shirt
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B
The height of a student
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C
The name of a pet
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D
The weather type
17
What do we call the list of items or names down the side of a bar graph?
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A
Labels
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B
Variables
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C
Units
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D
Scale
18
What is the first step in a data investigation?
-
A
Drawing a graph
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B
Asking a question
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C
Calculating the mean
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D
Collecting information
