Daily Practice

Foundation

21st May 2025

5 questions · Foundation tier · 282 questions in this band

1
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.
2
Skewness by Inspection
A distribution has a long tail of high values on the right. What type of skew is this?
3
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?
4
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.
5
Spearman's Rank Interpretation
For a class, the Spearman's rank correlation coefficient between shoe size and spelling test score is rs = 0.15. Describe the correlation.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of May 2025, including the monthly compilation PDF.