Daily Practice

Higher

7th June 1988

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

1
Conditional Probability3 marks
28 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 Recapture3 marks
55 voles are marked and released. Later 36 are caught, of which 9 are marked. Estimate the population.
3
Bounds2 marks
A mass is 19.4 kg, correct to 1 decimal place. Write down the upper bound.
4
Solving Quadratics3 marks
Solve x^2 - 2x - 15 = 0.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 9. Write y in terms of x.

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