Daily Practice

Higher

28th May 1958

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

1
Conditional Probability3 marks
18 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
Cumulative Frequency2 marks
Four classes in order have frequencies 4, 6, 5, 6. Write down the cumulative frequency at the end of the third class.
3
Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 - 2x + 2 = 0 and say how many real solutions it has.
5
Speed and Density2 marks
A block has volume 125 cm^3 and density 2.5 g/cm^3. Work out its mass.

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