Daily Practice

Higher

12th October 1973

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

1
Conditional Probability3 marks
27 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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 4 mains, 6 sides and 6 drinks. How many different meals are possible?
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 + 11x - 1 = 0, to 2 decimal places.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 99. Work out y when x = 4.

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