Daily Practice

Foundation

1st January 2025

5 questions · Foundation tier · 282 questions in this band

1
Conditional Probability (Foundation)
A pack of 10 cards is numbered 1 to 10. One card is drawn and not replaced; it is even. A second card is then drawn. Find P(second card is even given the first card was even).
2
Estimating from Samples (Foundation)
A random sample of 50 packets of crisps from a production run of 8000 found 3 were underweight. Estimate how many packets in the whole run are underweight.
3
Spreadsheets and ICT (Foundation)
Which formula finds the highest value in the range E1 to E30?
4
Stratified Sampling (Foundation)
A company has 60 male and 90 female employees (150 total). A stratified sample of 30 employees is taken. How many males should be sampled?
5
Pilot Surveys (Foundation)
A pilot survey shows that many respondents left a question blank. What might this suggest about the question?

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