Daily Practice · Higher

Daily Practice - Higher

28th March 1997

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
23 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 newt population of a stream. State one assumption the method relies on.
3
Fractional and Negative Indices3 marks
Work out 27^(2/3).
4
Solving Quadratics3 marks
Solve x^2 - 14x + 49 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 35. Work out y when x = 9.

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