Higher
28th September 1987
- 1Spheres and Cones3 marks
A cone has base radius 4 cm and vertical height 3 cm. Work out its volume, leaving your answer in terms of pi.
- 2Probability Trees3 marks
A bag holds 3 red and 7 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 140 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Bounds2 marks
A mass is 52 kg, correct to the nearest whole number. Write down the lower bound.
- 5Inequalities on Graphs2 marks
A region is defined by y < -x - 4. Should the boundary line be solid or dashed, and why?
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