Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

29th May 2007

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

1
Probability Trees3 marks
3 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
10 beetles are marked and released. Later 80 are caught, of which 8 are marked. Estimate the population.
3
Bounds2 marks
A mass is 51 kg, correct to the nearest whole number. Write down the lower bound.
4
Equation of a Line3 marks
A line has gradient 3 and passes through (2, 10). Work out its equation.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 7 : 9. Write y in terms of x.

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