Daily Practice
Foundation Plus
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21st February 1974
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 200 times. How many heads would you expect?
- 2Capture Recapture3 marks
55 fish are marked and released. Later 90 are caught, of which 9 are marked. Estimate the population.
- 3Standard Form2 marks
Write 0.0000081 in standard form.
- 4Solving Equations3 marks
Solve 4(x + 2) = 16.
- 5Speed and Density2 marks
A block has volume 55 cm^3 and density 4 g/cm^3. Work out its mass.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1974, including the monthly compilation PDF.