Daily Practice

Higher

19th March 1985

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

1
Conditional Probability3 marks
20 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
45 voles are marked and released. Later 10 are caught, of which 2 are marked. Estimate the population.
3
Standard Form2 marks
Work out (8 x 10^3) x (5 x 10^2). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 - 10x + 3 = 0, to 2 decimal places.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 8. Write y in terms of x.

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