Daily Practice

Higher

22nd July 1975

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

1
Conditional Probability3 marks
23 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
40 fish are marked and released. Later 15 are caught, of which 5 are marked. Estimate the population.
3
Fractional and Negative Indices3 marks
Work out 81^(3/2).
4
Solving Quadratics3 marks
Solve x^2 - 64 = 0.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 9. Write y in terms of x.

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