Daily Practice

Higher

31st December 2024

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?

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