Daily Practice

Higher

18th January 1977

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

1
Probability Trees3 marks
1 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
20 newts are marked and released. Later 30 are caught, of which 5 are marked. Estimate the population.
3
Bounds2 marks
A mass is 23.3 kg, correct to 1 decimal place. Write down the lower bound.
4
Equation of a Line3 marks
A line has gradient -2 and passes through (3, -3). Work out its equation.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 9. Write y in terms of x.

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