Daily Practice
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15th January 1972
- 1Conditional Probability3 marks
29 students study Spanish and 9 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 11, lower quartile 16, median 25, upper quartile 35 and maximum 39. Work out the interquartile range.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7777... as a fraction in its simplest form.
- 4Inequalities on Graphs3 marks
Does the point (4, -9) satisfy y > -x - 6?
- 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 January 1972, including the monthly compilation PDF.