Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

29th September 2012

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
12 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Box Plots2 marks
A box plot has minimum 15, lower quartile 18, median 26, upper quartile 32 and maximum 36. Work out the interquartile range.
3
Standard Form3 marks
Work out (81 x 10^12) / (9 x 10^5). Give your answer in standard form.
4
Solving Quadratics3 marks
Solve x^2 - 8x + 15 = 0.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 112. Work out y when x = 6.

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