Daily Practice

Higher

24th May 1985

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

1
Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
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 (3 x 10^3). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 6x^2 - x - 2.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 84. Work out y when x = 10.

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