Daily Practice

Higher

8th May 1987

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
15 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 newt population of a stream. State one assumption the method relies on.
3
Bounds2 marks
A mass is 18.8 kg, correct to 1 decimal place. Write down the lower bound.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - x - 7, work out y when x = 3.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 30. Work out y when x = 8.

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