Daily Practice
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28th February 1975
- 1Conditional Probability3 marks
14 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 fish population of a pond. State one assumption the method relies on.
- 3Standard Form3 marks
Work out (35 x 10^6) / (5 x 10^3). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 + 3x - 4 = 0.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 88. Work out y when x = 15.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1975, including the monthly compilation PDF.