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WorksheetsLesson 5: Using and Manipulating Data
Total questions: 15
Worksheet time: 8mins
What is data modelling?
A) Analysing trends
B) Storing data
C) Manually sorting files
D) Printing reports
Which model forecasts sales?
A) Climate model
B) Profit model
C) Sales model
D) Data entry log
Why use machine learning models?
A) Predict patterns
B) Delete records
C) Reduce file size
D) Encrypt reports
What limits numerical models?
A) Computation power
B) Too much storage
C) Fixed file size
D) Always perfect results
What affects model accuracy?
A) Outdated data
B) Extra files
C) Manual sorting
D) Paper records
Which helps in quick data review?
A) Manual reports
B) Raw numbers
C) Visual dashboards
D) Paper lists
Why are tables useful?
A) Organise data
B) Hide trends
C) Slow retrieval
D) Increase errors
Which graph shows proportions?
A) Line graph
B) Bar chart
C) Pie chart
D) Scatter plot
What misleads data interpretation?
A) Proper scales
B) Consistent labels
C) Manipulated charts
D) Clear trends
What is a query?
A) A data request
B) A printed sheet
C) A manual file
D) A lost document
What makes a report effective?
A) Clarity
B) Complexity
C) Random data
D) Unlabeled charts
Which query calculates totals?
A) Select query
B) Delete query
C) Aggregate query
D) Update query
Why use reports?
A) Summarise findings
B) Store passwords
C) Delete records
D) Prevent errors
What is an advantage of queries?
A) Fast data retrieval
B) No need for storage
C) Stops user errors
D) Removes encryption
Which improves decision-making?
A) Clear reports
B) Random data
C) Incomplete files
D) Hidden records
