Daily Practice

Foundation

8th March 2025

5 questions · Foundation tier · 282 questions in this band

1
Estimating from Samples (Foundation)
A survey of 30 shoppers out of 900 in a store found the mean amount spent was 18.50 pounds. What is the best estimate of the mean amount spent by all 900 shoppers?
2
Spreadsheets and ICT (Foundation)
Which spreadsheet formula would you use to find the total of the values in cells B2 to B20?
3
Stratified Sampling (Foundation)
A population of 90 people is split into 3 age groups: 30 aged 18 to 30, 40 aged 31 to 50, and 20 aged 51 or over. A stratified sample of 27 is needed. Find how many from the 51-or-over group should be sampled.
4
Pilot Surveys (Foundation)
A tick-box question has the options '0-10', '10-20', '20-30'. What problem would a pilot survey likely identify with this?
5
Recognising Misleading Graphs (Foundation)
A line graph's horizontal (time) axis has unequal gaps between the years labelled: 2010, 2011, 2015, 2016. Why could this mislead a reader?

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