Foundation
26th September 2025
- 1Bar and Composite Bar Charts
A composite bar chart shows exam grades at a school: the bar has a section from 0 to 10 for Grade 9-7, a section from 10 to 34 for Grade 6-4, and a section from 34 to 40 for Grade 3-1. How many students got Grade 6-4?
- 2Mutually Exclusive Events
Are 'rolling an even number' and 'rolling a 5' on a normal six-sided dice mutually exclusive?
- 3Pie Charts
Chart A represents 80 votes and has a 'Green Party' sector of 45 degrees. Chart B represents 150 votes and has a 'Green Party' sector of 30 degrees. Which chart represents more actual Green Party votes?
- 4Sample Space Diagrams
A spinner with sections A, B and C is spun alongside a fair coin. How many outcomes are in the sample space, and what is P(getting C and Heads)?
- 5Relative and Expected Frequency
The probability that a machine produces a faulty item is 0.04. Out of 300 items, how many would you expect to be faulty?
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