Daily Practice - Higher
11th October 1996
- 1Conditional Probability3 marks
25 students study Spanish and 11 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 snail population of a hedgerow. State one assumption the method relies on.
- 3Standard Form2 marks
Work out (9 x 10^4) x (9 x 10^6). Give your answer in standard form.
- 4Quadratic Formula3 marks
Work out the discriminant of 3x^2 - 5x + 5 = 0 and say how many real solutions it has.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 56. Work out y when x = 14.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1996, including the monthly compilation PDF.