Daily Practice · Higher

Daily Practice - Higher

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

24th March 2007

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

1
Conditional Probability3 marks
23 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 5, lower quartile 11, median 14, upper quartile 16 and maximum 18. Work out the interquartile range.
3
Bounds2 marks
A mass is 17.1 kg, correct to 1 decimal place. Write down the lower bound.
4
Solving Quadratics3 marks
Solve x^2 - 81 = 0.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 324. Work out y when x = 2.

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