Daily Practice
Higher
← All tiers
4th December 1971
- 1Probability Trees3 marks
3 of 5 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 8, lower quartile 17, median 20, upper quartile 25 and maximum 28. Work out the interquartile range.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... as a fraction in its simplest form.
- 4Equation of a Line3 marks
A line has gradient -2 and passes through (2, -12). Work out its equation.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 50. 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 December 1971, including the monthly compilation PDF.