Daily Practice

Higher

20th August 1982

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

1
Probability Trees3 marks
4 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
The Product Rule for Counting2 marks
A meal deal has 3 mains, 4 sides and 2 drinks. How many different meals are possible?
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 14x - 15.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 44. Work out y when x = 12.

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