Daily Practice
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8th April 1972
- 1Conditional Probability3 marks
14 students study Spanish and 6 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 12, lower quartile 18, median 24, upper quartile 32 and maximum 41. Work out the interquartile range.
- 3Standard Form3 marks
Work out (40 x 10^8) / (8 x 10^3). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 - 3x + 2 = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 6.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1972, including the monthly compilation PDF.