Daily Practice

Higher

21st November 1978

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

1
Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
55 voles are marked and released. Later 27 are caught, of which 3 are marked. Estimate the population.
3
Standard Form2 marks
Work out (6 x 10^5) x (6 x 10^3). Give your answer in standard form.
4
Equation of a Line3 marks
A line has gradient -4 and passes through (1, -5). Work out its equation.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 5. Write y in terms of x.

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