Daily Practice · Higher

Daily Practice - Higher

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

20th October 2016

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

1
Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Histograms2 marks
A histogram class is 2 units wide and contains 4 values. Work out the frequency density.
3
Bounds2 marks
A mass is 150 kg, correct to the nearest 10. Write down the lower bound.
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 - 13x - 4.
5
Repeated Percentage Change3 marks
A town's population is 34500 and grows by 6% each year. Work out the population after 6 years, to the nearest whole number.

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