Daily Practice · Higher

Daily Practice - Higher

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

17th February 2009

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

1
Conditional Probability3 marks
26 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
25 newts are marked and released. Later 70 are caught, of which 7 are marked. Estimate the population.
3
Standard Form3 marks
Work out (14 x 10^12) / (2 x 10^3). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 + 7x + 2 = 0, to 2 decimal places.
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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