Daily Practice

Foundation

6th November 2025

5 questions · Foundation tier · 282 questions in this band

1
Correlation and Causation (Foundation)
A scatter graph shows that as temperature increases, the number of hot drinks sold decreases. What type of correlation is this?
2
Risk (Foundation)
Group A has a risk of 0.08 of an event happening; Group B has a risk of 0.02. Find the relative risk of Group A compared with Group B.
3
Skewness by Inspection
A distribution has a long tail of high values on the right. What type of skew is this?
4
Percentiles
In a class of 30 students, a student's mark is at the 90th percentile. Roughly how many students scored less than or equal to that mark?
5
Crude Rate and Rates of Change
A region records 90 crimes in a population of 45,000. Find the crude crime rate per 1000 people.

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