Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
21 students study Spanish and 11 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 10, median 14, upper quartile 17 and maximum 26. Work out the interquartile range.
- 3Standard Form3 marks
Work out (12 x 10^11) / (3 x 10^3). Give your answer in standard form.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 3x + 2, work out y when x = -1.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 27. Work out y when x = 9.
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