Higher
20th August 1973
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 48 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.5959... as a fraction in its simplest form.
- 3Inequalities on Graphs2 marks
A region is defined by y <= -4x + 7. Should the boundary line be solid or dashed, and why?
- 4Repeated Percentage Change3 marks
A price rises by 15% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
- 5Spheres and Cones3 marks
A cone has base radius 4 cm and vertical height 12 cm. Work out its volume, leaving your answer in terms of pi.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1973, including the monthly compilation PDF.