Higher
29th August 1988
- 1Spheres and Cones3 marks
A cone has base radius 10 cm and vertical height 15 cm. Work out its volume, leaving your answer in terms of pi.
- 2Probability Trees3 marks
A bag holds 8 red and 2 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 196 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Fractional and Negative Indices2 marks
Write 3^-3 as a fraction.
- 5Inequalities on Graphs2 marks
A region is defined by y < 3x - 3. Should the boundary line be solid or dashed, and why?
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