Higher
29th February 1968
- 1Conditional Probability3 marks
9 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Histograms2 marks
A histogram class is 5 units wide and contains 20 values. Work out the frequency density.
- 3Surds2 marks
Write sqrt(12) in the form a sqrt(b), where b is as small as possible.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 7x + 6, work out y when x = -4.
- 5Repeated Percentage Change3 marks
A town's population is 11500 and grows by 6% 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 February 1968, including the monthly compilation PDF.