Daily Practice
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13th January 1970
- 1Conditional Probability3 marks
16 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Capture Recapture3 marks
50 fish are marked and released. Later 14 are caught, of which 2 are marked. Estimate the population.
- 3Standard Form2 marks
Work out (5 x 10^3) x (3 x 10^-2). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 - 5x + 4 = 0.
- 5Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 7. Write y in terms of x.
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