Daily Practice · Higher

Daily Practice - Higher

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

2nd December 2009

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

1
Conditional Probability3 marks
21 students study Spanish and 5 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, 8, 4, 12. Write down the cumulative frequency at the end of the third class.
3
The Product Rule for Counting2 marks
A meal deal has 4 mains, 9 sides and 2 drinks. How many different meals are possible?
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 - 10x + 9 = 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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