Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
23 students study Spanish and 12 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 6, lower quartile 8, median 16, upper quartile 25 and maximum 30. Work out the interquartile range.
- 3The Product Rule for Counting2 marks
A meal deal has 9 mains, 8 sides and 3 drinks. How many different meals are possible?
- 4Quadratic Formula3 marks
Use the quadratic formula to solve x^2 - 9x - 8 = 0, to 2 decimal places.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 72. Work out y when x = 8.
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