Daily Practice
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20th July 1957
- 1Conditional Probability3 marks
16 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Box Plots2 marks
A box plot has minimum 8, lower quartile 15, median 20, upper quartile 27 and maximum 33. Work out the interquartile range.
- 3Fractional and Negative Indices2 marks
Write 9^-1 as a fraction.
- 4Solving Quadratics3 marks
Solve x^2 - 10x + 9 = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 63. Work out y when x = 9.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1957, including the monthly compilation PDF.