Daily Practice

Higher

27th January 1989

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

1
Probability Trees3 marks
5 of 9 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 fish population of a pond. State one assumption the method relies on.
3
Standard Form3 marks
Work out (16 x 10^9) / (4 x 10^4). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 20x^2 + 17x + 3.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 9. Work out y when x = 14.

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