Daily Practice

Foundation

18th September 2024

5 questions · Foundation tier · 282 questions in this band

1
Choropleth Maps
What is the purpose of the key on a choropleth map?
2
Data Cleaning and Outliers (Foundation)
Explain why the median might be a more appropriate average to use on a data set with an outlier, instead of removing the outlier first.
3
Correlation and Causation (Foundation)
A study finds a positive correlation between shoe size and reading ability in primary school children. Does having big feet cause better reading?
4
Risk (Foundation)
In a trial, 3 out of 150 patients taking a new drug had side effects. Write this risk in '1 in n' form.
5
Skewness by Inspection
A box plot shows a long whisker on the left and a short whisker on the right, with the median close to the right of the box. What type of skew does this suggest?

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 September 2024, including the monthly compilation PDF.