Higher
24th March 1983
- 1Probability Trees3 marks
1 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Histograms2 marks
A histogram class is 2 units wide and contains 5 values. Work out the frequency density.
- 3Standard Form2 marks
Work out (9 x 10^7) x (9 x 10^-2). Give your answer in standard form.
- 4Equation of a Line3 marks
A line has gradient 1 and passes through (6, 12). Work out its equation.
- 5Repeated Percentage Change3 marks
A town's population is 36500 and grows by 3% each year. Work out the population after 6 years, to the nearest whole number.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1983, including the monthly compilation PDF.