Daily Practice

Higher

21st March 1979

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

1
Probability Trees3 marks
2 of 10 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 12, 7, 8, 3. Write down the cumulative frequency at the end of the third class.
3
Bounds2 marks
A mass is 29 kg, correct to 1 decimal place. Write down the lower bound.
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 4x + 1.
5
Speed and Density2 marks
A block has volume 125 cm^3 and density 4 g/cm^3. Work out its mass.

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