Daily Practice

Foundation

5th November 2025

5 questions · Foundation tier · 282 questions in this band

1
Scatter Graphs and Line of Best Fit
A scatter graph shows points that generally rise from bottom left to top right. What type of correlation does this show?
2
Time Series
On a time series graph, what is always plotted on the horizontal axis?
3
Population Pyramids
A pyramid has a wide base and a narrow top. What does this suggest about the population?
4
Choropleth Maps
A choropleth map of rainfall uses two different hues (for example yellow to red) rather than one hue getting darker. Why can this style of shading be a problem?
5
Data Cleaning and Outliers (Foundation)
Give one reason you might choose to keep an outlier in a data set rather than remove it.

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