Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
27 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 3, lower quartile 10, median 15, upper quartile 23 and maximum 25. Work out the interquartile range.
- 3Bounds2 marks
A mass is 14.7 kg, correct to 1 decimal place. Write down the upper bound.
- 4Solving Quadratics3 marks
Solve x^2 - 7x + 6 = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 180. Work out y when x = 7.
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