Higher
4th December 1965
- 1Spheres and Cones3 marks
A cone has base radius 9 cm and vertical height 24 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.
- 3Box Plots2 marks
A box plot has minimum 8, lower quartile 12, median 19, upper quartile 22 and maximum 32. Work out the interquartile range.
- 4Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.9494... as a fraction in its simplest form.
- 5Inequalities on Graphs2 marks
A region is defined by y <= 3x + 2. Should the boundary line be solid or dashed, and why?
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1965, including the monthly compilation PDF.