Higher
3rd September 1972
- 1Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 6, y = 24. Work out y when x = 4.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 13 cm and angle 45°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
32 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has a minimum of 15 and a maximum of 57. Work out the range.
- 5The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
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