Higher
- 1Conditional Probability3 marks
20 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 172 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 4Inequalities on Graphs3 marks
Does the point (3, -16) satisfy y > -x - 7?
- 5Repeated Percentage Change3 marks
A price rises by 25% 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 May 1988, including the monthly compilation PDF.