Daily Practice

Foundation

8th April 2025

5 questions · Foundation tier · 282 questions in this band

1
Designing Questionnaires and Surveys
Give one reason why the response options '0-5, 5-10, 10-15' are a poor choice for hours of homework.
2
Experimental Design
What is meant by the independent variable in an experiment?
3
Median Quartiles and IQR
For the ordered data 6, 9, 11, 14, 16, 18, 20, 23, 25, 28, find the interquartile range.
4
Index Numbers
A cost index for electricity, relative to the same base year, was 120 in 2021 and 150 in 2023. Find the percentage increase in the cost of electricity from 2021 to 2023 (not from the base year).
5
Frequency Tables and Tally Charts
A tally shows 4 full groups of five plus 2 extra marks for one category. What is the frequency?

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