Daily Practice · Higher

Daily Practice - Higher

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

16th December 2011

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

1
Conditional Probability3 marks
28 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
3
Standard Form2 marks
Work out (4 x 10^5) x (7 x 10^-6). Give your answer in standard form.
4
Solving Quadratics3 marks
Solve x^2 + 11x + 30 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 6. Work out y when x = 6.

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