Daily Practice · Higher

Daily Practice - Higher

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

29th July 2009

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

1
Probability Trees3 marks
4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 10, 7, 3, 11. Write down the cumulative frequency at the end of the third class.
3
Bounds2 marks
A mass is 52 kg, correct to the nearest whole number. Write down the upper bound.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 6x - 9.
5
Speed and Density2 marks
A block has volume 80 cm^3 and density 8 g/cm^3. Work out its mass.

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