Daily Practice

Higher

1st October 1982

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

1
Conditional Probability3 marks
14 students study Spanish and 7 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 Form3 marks
Work out (9 x 10^6) / (3 x 10^3). Give your answer in standard form.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 8x + 2, work out y when x = -3.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 81. Work out y when x = 7.

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