Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

26th August 2014

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

1
Conditional Probability3 marks
29 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
50 beetles are marked and released. Later 77 are caught, of which 7 are marked. Estimate the population.
3
Fractional and Negative Indices2 marks
Write 2^-1 as a fraction.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 + 2x + 3 = 0 and say how many real solutions it has.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 6. Write y in terms of x.

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