Daily Practice

Higher

22nd February 1983

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

1
Conditional Probability3 marks
20 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
25 voles are marked and released. Later 88 are caught, of which 8 are marked. Estimate the population.
3
Fractional and Negative Indices3 marks
Work out 100^(3/2).
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 7x + 3, work out y when x = 1.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 5. Write y in terms of x.

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