Higher
31st January 1962
- 1Conditional Probability3 marks
18 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 12, 11, 4, 7. Write down the cumulative frequency at the end of the third class.
- 3Standard Form2 marks
Work out (7 x 10^8) x (9 x 10^-3). Give your answer in standard form.
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 2x^2 - 12x + 1 = 0, to 2 decimal places.
- 5Speed and Density2 marks
A block has volume 105 cm^3 and density 11 g/cm^3. Work out its mass.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1962, including the monthly compilation PDF.