Daily Practice
Higher
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16th June 1984
- 1Conditional Probability3 marks
14 students study Spanish and 7 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 10, median 15, upper quartile 22 and maximum 26. Work out the interquartile range.
- 3Bounds2 marks
A mass is 780 kg, correct to the nearest 10. Write down the lower bound.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 8x - 6, work out y when x = -4.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 225. 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 June 1984, including the monthly compilation PDF.