Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

14th June 2005

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

1
Conditional Probability3 marks
23 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
40 voles are marked and released. Later 45 are caught, of which 9 are marked. Estimate the population.
3
Standard Form2 marks
Work out (3 x 10^8) x (2 x 10^-3). Give your answer in standard form.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 + 7x + 8 = 0 and say how many real solutions it has.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 7. Write y in terms of x.

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