Daily Practice · Higher

Daily Practice - Higher

23rd February 1993

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

1
Probability Trees3 marks
1 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
40 newts are marked and released. Later 36 are caught, of which 4 are marked. Estimate the population.
3
Fractional and Negative Indices2 marks
Write 4^-1 as a fraction.
4
Factorising Harder Quadratics3 marks
Factorise 16x^2 - 24x + 9.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 7. Write y in terms of x.

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