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8th April 1995
- 1Conditional Probability3 marks
18 students study Spanish and 10 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 7, lower quartile 16, median 26, upper quartile 30 and maximum 33. Work out the interquartile range.
- 3Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.
- 4Solving Quadratics3 marks
Solve x^2 - 25 = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 4.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1995, including the monthly compilation PDF.