Higher
21st February 1972
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 240 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Bounds2 marks
A mass is 9 kg, correct to the nearest whole number. Write down the upper bound.
- 3Expanding Triple Brackets3 marks
Expand and simplify (x - 3)(x - 3)(x - 3).
- 4Repeated Percentage Change3 marks
A price rises by 10% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
- 5Pythagoras2 marks
A right-angled triangle has a hypotenuse of 15 cm and one shorter side of 9 cm. Work out the other shorter side.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1972, including the monthly compilation PDF.