Daily Practice - Higher
30th July 1994
- 1Conditional Probability3 marks
21 students study Spanish and 5 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 4, lower quartile 14, median 21, upper quartile 24 and maximum 28. Work out the interquartile range.
- 3Bounds2 marks
A mass is 8.2 kg, correct to 1 decimal place. Write down the lower bound.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 2x + 12, work out y when x = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 100. Work out y when x = 9.
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