Daily Practice

Higher

3rd September 1971

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 = 7, y = 42. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (-4, -1) and b is (3, -5). Work out 2a - 4b as a column vector.
3
Probability Trees3 marks
3 of 7 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
The Product Rule for Counting2 marks
A meal deal has 7 mains, 5 sides and 6 drinks. How many different meals are possible?

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