Daily Practice
Higher
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3rd January 1989
- 1Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture3 marks
35 newts are marked and released. Later 28 are caught, of which 4 are marked. Estimate the population.
- 3Standard Form2 marks
Work out (6 x 10^7) x (6 x 10^5). Give your answer in standard form.
- 4Equation of a Line3 marks
A line has gradient -5 and passes through (5, -29). Work out its equation.
- 5Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 5. Write y in terms of x.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1989, including the monthly compilation PDF.