Daily Practice
Higher
← All tiers
19th November 1983
- 1Probability Trees3 marks
3 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Box Plots2 marks
A box plot has minimum 2, lower quartile 5, median 12, upper quartile 14 and maximum 19. Work out the interquartile range.
- 3Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
- 4Equation of a Line3 marks
A line has gradient 1 and passes through (1, -5). Work out its equation.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 200. 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 November 1983, including the monthly compilation PDF.