Daily Practice · Higher

Daily Practice - Higher

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

25th September 1998

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

1
Probability Trees3 marks
5 of 7 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 snail population of a hedgerow. State one assumption the method relies on.
3
Bounds2 marks
A mass is 770 kg, correct to the nearest 10. Write down the lower bound.
4
Equation of a Line3 marks
A line has gradient -5 and passes through (2, -8). Work out its equation.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 30. Work out y when x = 4.

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