Daily Practice

Higher

21st January 1964

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

1
Conditional Probability3 marks
17 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
25 beetles are marked and released. Later 50 are caught, of which 5 are marked. Estimate the population.
3
Fractional and Negative Indices2 marks
Write 3^-3 as a fraction.
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 + x + 12 = 0 and say how many real solutions it has.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 8. Write y in terms of x.

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