Higher
25th February 1980
- 1SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 5 cm, 12 cm and 13 cm. Work out the angle opposite the 5 cm side, to 1 decimal place.
- 2Probability Trees3 marks
A bag holds 3 red and 4 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 236 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Bounds2 marks
A mass is 20.1 kg, correct to 1 decimal place. Write down the upper bound.
- 5Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = 2x - 6 that passes through (4, -3).
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1980, including the monthly compilation PDF.