Daily Practice

Higher

30th July 2026

5 questions · Higher tier · 360 questions in this band

1
Box Plots from Cumulative Frequency and Outliers
A data set has Q1 = 15 and Q3 = 45. Calculate both outlier boundaries.
2
Weighted and Geometric Mean
Find the geometric mean of 4 and 9.
3
Pilot Surveys (Higher)
Give one reason why a researcher would run a pilot survey before the main survey.
4
Weighted and Chain Base Index Numbers
Two items have index numbers, base year = 100, of 108 (weight 3) and 96 (weight 7). Calculate the weighted index number.
5
Recognising Misleading Graphs (Higher)
A line graph comparing two companies' sales uses a different scale on the left and right vertical axes, without making this clear. Why is this misleading?

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 July 2026, including the monthly compilation PDF.