Daily Practice

Higher

17th September 1963

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

1
Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
25 fish are marked and released. Later 84 are caught, of which 7 are marked. Estimate the population.
3
Standard Form2 marks
Work out (8 x 10^7) x (8 x 10^-3). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 3x^2 - 2x - 5.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 7 : 9. Write y in terms of x.

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