Daily Practice

Higher

27th May 1981

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

1
Conditional Probability3 marks
17 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 5, 9, 7, 10. Write down the cumulative frequency at the end of the third class.
3
Fractional and Negative Indices2 marks
Write 6^-2 as a fraction.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 - 2x + 11 = 0 and say how many real solutions it has.
5
Speed and Density2 marks
A block has volume 25 cm^3 and density 11 g/cm^3. Work out its mass.

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