Daily Practice
Higher
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9th March 1963
- 1Probability Trees3 marks
4 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 10, lower quartile 16, median 25, upper quartile 29 and maximum 38. Work out the interquartile range.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.2727... as a fraction in its simplest form.
- 4Factorising Harder Quadratics3 marks
Factorise 8x^2 + 6x - 9.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 45. 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 March 1963, including the monthly compilation PDF.