Daily Practice

Higher

22nd July 1960

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

1
Probability Trees3 marks
3 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 newt population of a stream. State one assumption the method relies on.
3
Fractional and Negative Indices3 marks
Work out 49^(3/2).
4
Factorising Harder Quadratics3 marks
Factorise 15x^2 + 38x + 24.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 24. Work out y when x = 14.

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