Daily Practice

Higher

10th April 1953

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

1
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 33. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (-4, -4) and b is (-4, 0). Work out 4a - 2b as a column vector.
3
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.
4
Capture Recapture2 marks
A capture-recapture estimate is made of the snail population of a hedgerow. State one assumption the method relies on.
5
Fractional and Negative Indices2 marks
Write 2^-2 as a fraction.

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