Daily Practice

Higher

23rd May 1975

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

1
Conditional Probability3 marks
24 students study Spanish and 6 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
Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 8x - 10, work out y when x = 1.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 20. Work out y when x = 8.

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