Daily Practice

Higher

22nd June 1984

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

1
Probability Trees3 marks
2 of 5 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 ladybird population of a garden. State one assumption the method relies on.
3
Fractional and Negative Indices2 marks
Write 4^-2 as a fraction.
4
Factorising Harder Quadratics3 marks
Factorise 3x^2 - 5x - 12.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 45. Work out y when x = 4.

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