Higher
19th February 1979
- 1Conditional Probability3 marks
16 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 120 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Standard Form3 marks
Work out (27 x 10^12) / (3 x 10^3). Give your answer in standard form.
- 4Inequalities on Graphs3 marks
Does the point (1, -12) satisfy y > -4x - 3?
- 5Repeated Percentage Change3 marks
A price rises by 15% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1979, including the monthly compilation PDF.