Higher
20th April 1956
- 1Conditional Probability3 marks
25 students study Spanish and 6 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 ladybird population of a garden. State one assumption the method relies on.
- 3Standard Form2 marks
Work out (8 x 10^6) x (2 x 10^2). Give your answer in standard form.
- 4Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 8x - 3 = 0, to 2 decimal places.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 72. Work out y when x = 8.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1956, including the monthly compilation PDF.