Daily Practice
Higher
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9th August 1967
- 1Conditional Probability3 marks
8 students study Spanish and 3 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 6, 6, 3, 5. Write down the cumulative frequency at the end of the third class.
- 3Fractional and Negative Indices3 marks
Work out 125^(2/3).
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 - 11x - 4 = 0, to 2 decimal places.
- 5Speed and Density2 marks
A block has volume 30 cm^3 and density 2.5 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 August 1967, including the monthly compilation PDF.