Daily Practice

Higher

11th April 1975

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

1
Probability Trees3 marks
2 of 10 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 beetle population of a woodland. State one assumption the method relies on.
3
Standard Form2 marks
Work out (7 x 10^8) x (9 x 10^-6). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 18x + 9.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 33. Work out y when x = 14.

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