Daily Practice
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24th July 1970
- 1Conditional Probability3 marks
10 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 3Fractional and Negative Indices2 marks
Write 2^-2 as a fraction.
- 4Solving Quadratics3 marks
Solve x^2 + 8x - 9 = 0.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 32. Work out y when x = 6.
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