Daily Practice · Higher

Daily Practice - Higher

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

1st December 2007

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

1
Conditional Probability3 marks
24 students study Spanish and 4 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 10, lower quartile 14, median 19, upper quartile 21 and maximum 27. Work out the interquartile range.
3
Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.
4
Inequalities on Graphs3 marks
Does the point (-4, -1) satisfy y > -x - 6?
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 128. Work out y when x = 3.

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