Higher
26th September 1983
- 1Conditional Probability3 marks
21 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 60 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Bounds2 marks
A mass is 520 kg, correct to the nearest 10. Write down the upper bound.
- 4Inequalities on Graphs3 marks
Does the point (-1, 8) satisfy y > -2x - 1?
- 5Repeated Percentage Change3 marks
A price rises by 20% and then falls by 20%. 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 September 1983, including the monthly compilation PDF.