Daily Practice

Higher

21st June 1974

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

1
Conditional Probability3 marks
19 students study Spanish and 12 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
Fractional and Negative Indices3 marks
Work out 49^(3/2).
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 7x - 3, work out y when x = -1.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 72. Work out y when x = 9.

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