Daily Practice
Foundation Plus
← All tiers
21st January 1973
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 250 times. How many heads would you expect?
- 2Capture Recapture3 marks
55 voles are marked and released. Later 36 are caught, of which 6 are marked. Estimate the population.
- 3Standard Form2 marks
Write 0.000021 in standard form.
- 4Solving Equations3 marks
Solve 2(x - 7) = 8.
- 5Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 3. Write y in terms of x.
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