Daily Practice

Higher

4th April 1958

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

1
Probability Trees3 marks
1 of 5 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 20 kg, correct to 1 decimal place. Write down the upper bound.
4
Equation of a Line3 marks
A line has gradient -1 and passes through (6, -11). Work out its equation.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 28. Work out y when x = 4.

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