Daily Practice · Higher

Daily Practice - Higher

7th January 1994

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

1
Conditional Probability3 marks
13 students study Spanish and 3 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 beetle population of a woodland. State one assumption the method relies on.
3
The Product Rule for Counting2 marks
A meal deal has 9 mains, 9 sides and 6 drinks. How many different meals are possible?
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 + 9x + 12 = 0 and say how many real solutions it has.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 72. Work out y when x = 7.

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