Daily Practice

Higher

23rd August 1978

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

1
Conditional Probability3 marks
31 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 8, 10, 10, 4. Write down the cumulative frequency at the end of the third class.
3
Surds2 marks
Write sqrt(98) in the form a sqrt(b), where b is as small as possible.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 - 8x - 8 = 0, to 2 decimal places.
5
Speed and Density2 marks
A block has volume 130 cm^3 and density 2.5 g/cm^3. Work out its mass.

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