Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
24th July 2021
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 128. Work out y when x = 3.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 7 cm and angle 30°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
25 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has minimum 3, lower quartile 6, median 15, upper quartile 19 and maximum 23. Work out the interquartile range.
- 5Bounds2 marks
A mass is 12.8 kg, correct to 1 decimal place. Write down the lower bound.
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