Daily Practice

Higher

5th October 1979

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

1
Conditional Probability3 marks
24 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 moth population of a meadow. State one assumption the method relies on.
3
Bounds2 marks
A mass is 42 kg, correct to the nearest whole number. Write down the lower bound.
4
Solving Quadratics3 marks
Solve x^2 - 2x - 63 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 40. Work out y when x = 12.

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