Higher
24th October 1988
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 192 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.1414... as a fraction in its simplest form.
- 3Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 20/x, work out y when x = 2, and write down the equation of its vertical asymptote.
- 4Repeated Percentage Change3 marks
A price rises by 10% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
- 5Similar Shapes (Area and Volume)3 marks
Two similar solids have lengths in the ratio 1 : 3. The larger has a volume of 756 cm^3. Work out the volume of the smaller.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1988, including the monthly compilation PDF.