Daily Practice

Higher

20th March 1962

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

1
Conditional Probability3 marks
23 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
25 beetles are marked and released. Later 36 are caught, of which 4 are marked. Estimate the population.
3
The Product Rule for Counting2 marks
A meal deal has 4 mains, 4 sides and 5 drinks. How many different meals are possible?
4
Quadratic Formula3 marks
Work out the discriminant of x^2 + 2x + 12 = 0 and say how many real solutions it has.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 6. Write y in terms of x.

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