Daily Practice

Higher

15th January 1988

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

1
Conditional Probability3 marks
22 students study Spanish and 5 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 fish population of a pond. State one assumption the method relies on.
3
Surds2 marks
Write sqrt(98) in the form a sqrt(b), where b is as small as possible.
4
Solving Quadratics3 marks
Solve x^2 - x - 6 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 40. Work out y when x = 12.

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