Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
21st November 2009
- 1Box Plots2 marks
A box plot has minimum 2, lower quartile 4, median 7, upper quartile 15 and maximum 19. Work out the interquartile range.
- 2The Product Rule for Counting2 marks
A meal deal has 4 mains, 7 sides and 5 drinks. How many different meals are possible?
- 3Expanding and Factorising Quadratics2 marks
Factorise x^2 - 81.
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 225. Work out y when x = 4.
- 5Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 148°. Work out angle ABC, where B is on the major arc.
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