Worksheets › Class 9 › Statistics and Probability for AI
Class 9 · Computational Thinking and AI worksheetStatistics and Probability for AI
CBSE Computational Thinking and AI. Mean, median, mode and range, probability of events, impossible to certain, number patterns, car-spotting tallies. Every sheet has 20 questions in three sections and an answer key, and the questions change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The mean of 2, 4, 6, 8 is:
- 6
- 20
- 4
- 5
Answer
(d) 5
- 2.
What is the mean of 31, 11, 38, 21, 3, 25, 25?
- 23
- 154
- 25
- 22
Answer
(d) 22
154 ÷ 7
- 3.
What is the median of 32, 11, 32, 16, 9?
- 16
- 32
- 17
- 20
Answer
(a) 16
in order: 9, 11, 16, 32, 32
Section B · short answer
- 4.
What is statistics? Give two real-life uses.
Answer
The science of collecting, organising and analysing data; used in weather forecasting, sports analysis, disease prediction and disaster management.
- 5.
Find the mean of 3, 36, 11, 12, 3.
Answer
13
65 ÷ 5
Section C · long answer
- 6.
Explain how statistics is used in disaster management, sports and disease prediction.
Answer
Disasters: past rainfall and river data to predict floods; sports: player statistics to plan strategy; disease: case data to spot outbreaks early.
Fresh sheets for your child
In the app, every Statistics and Probability for AI sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.