Daily Practice - Higher
7th September 1991
- 1Spheres and Cones3 marks
A cone has base radius 7 cm and vertical height 24 cm. Work out its volume, leaving your answer in terms of pi.
- 2Probability Trees3 marks
A bag holds 4 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Box Plots2 marks
A box plot has minimum 1, lower quartile 10, median 15, upper quartile 17 and maximum 22. Work out the interquartile range.
- 4Surds2 marks
Write sqrt(50) in the form a sqrt(b), where b is as small as possible.
- 5Inequalities on Graphs2 marks
A region is defined by y < -x + 2. Should the boundary line be solid or dashed, and why?
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