Daily Practice · Higher

Daily Practice - Higher

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

3rd November 2005

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

1
Repeated Percentage Change3 marks
A town's population is 17000 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (5, -6) and b is (3, -3). Work out 3a - 4b as a column vector.
3
Probability Trees3 marks
5 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Histograms2 marks
A histogram class is 2 units wide and contains 1 values. Work out the frequency density.
5
Bounds2 marks
A mass is 110 kg, correct to the nearest 10. Write down the lower bound.

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