Higher
3rd April 1957
- 1Conditional Probability3 marks
26 students study Spanish and 11 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 9, 10, 5, 8. Write down the cumulative frequency at the end of the third class.
- 3The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 7x - 3, work out y when x = 3.
- 5Speed and Density2 marks
A block has volume 30 cm^3 and density 3 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 April 1957, including the monthly compilation PDF.