Daily Practice · Higher

Daily Practice - Higher

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

15th February 2014

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
20 students study Spanish and 11 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 20, median 29, upper quartile 32 and maximum 40. Work out the interquartile range.
3
Standard Form2 marks
Work out (6 x 10^7) x (9 x 10^-5). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 2x^2 - 10x - 6 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 16. Work out y when x = 9.

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