Daily Practice · Higher

Daily Practice - Higher

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

29th March 2006

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

1
Conditional Probability3 marks
25 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 6, 11, 8, 10. Write down the cumulative frequency at the end of the third class.
3
Standard Form3 marks
Work out (10 x 10^9) / (5 x 10^3). Give your answer in standard form.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 + 4x + 5 = 0 and say how many real solutions it has.
5
Speed and Density2 marks
A block has volume 30 cm^3 and density 2.5 g/cm^3. Work out its mass.

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