Daily Practice

Higher

10th March 1989

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
21 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
Capture Recapture2 marks
A capture-recapture estimate is made of the ladybird population of a garden. State one assumption the method relies on.
3
Standard Form2 marks
Work out (2 x 10^4) x (9 x 10^4). Give your answer in standard form.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 4x + 8, work out y when x = 4.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 81. Work out y when x = 13.

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