Lesson T5.1.2
T5.1.2 Collecting and analysing data Quiz: KS3 Computing, Unit 5
20 questions
In partnership with Revision Ninja
Lesson T5.1.2, Collecting and analysing data: 20 multiple choice questions for the KS3 Computing (National Curriculum), Unit 5: Creative digital projects, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
What term describes original data collected first-hand by the user?
- Batch data
- Secondary data
- Raw data
- Primary data
-
What term describes data that someone else has already collected?
- Live data
- Source data
- Secondary data
- Primary data
-
Why should a questionnaire be tested before use?
- Change the font
- Find confusing questions
- Speed up typing
- Increase file size
-
What is the main problem with a sample of only 5 friends?
- It is unrepresentative
- It is digital data
- It is too complex
- It uses binary
-
What is the mean of the numbers 4, 7, 7, 9 and 13?
- 10
- 8
- 9
- 7
-
What is the median of the numbers 4, 7, 7, 9 and 13?
- 9
- 7
- 8
- 13
-
What is the mode of the numbers 4, 7, 7, 9 and 13?
- 4
- 13
- 7
- 9
-
What is the range of the numbers 4, 7, 7, 9 and 13?
- 8
- 4
- 9
- 13
-
Which average is least affected by one very extreme value?
- The total
- The median
- The mean
- The range
-
A sensor logs temperature every minute. What is this method of collecting data called?
- Data compression
- Data logging
- Data encryption
- Data mining
-
Which chart is most suitable for showing how a value changes over time?
- A line graph
- A bar chart
- A pie chart
- A tally chart
-
Which chart is best for comparing categories side by side?
- A bar chart
- A flowchart
- A line graph
- A scatter graph
-
What is the main purpose of a scatter graph?
- To show totals
- To show proportions
- To show correlation
- To show sequences
-
Which is a sensible data check when analysing survey results?
- Changing user names
- Checking impossible values
- Deleting every row
- Printing all pages
-
Why is a larger random sample usually better than a small one?
- Faster to process
- More representative
- Cheaper to collect
- Easier to format
-
What term describes a systematic tendency that makes results unfair?
- Accuracy
- Sample
- Bias
- Median
-
What is the main problem with a question that suggests an answer?
- It is encrypted
- It is random
- It is digital
- It is leading
-
Which shows a sound method of collecting data in a school?
- Random sample
- Ignoring outliers
- Guessing the average
- Best friend survey
-
What does a sample size of 40 mean in a survey?
- Forty questions
- Forty minutes
- Forty respondents
- Forty errors
-
What term describes a data value that is very different from all the others?
- An average
- An outlier
- A variable
- A duplicate
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