Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Box Plots2 marks
A box plot has minimum 3, lower quartile 5, median 15, upper quartile 24 and maximum 26. Work out the interquartile range.
- 2The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 3Expanding and Factorising Quadratics2 marks
Factorise x^2 - 100.
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 324. Work out y when x = 8.
- 5Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 130°. Work out angle ABC, where B is on the major arc.
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