Daily Practice · Higher

Daily Practice - Higher

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

17th November 2016

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

1
Repeated Percentage Change3 marks
A town's population is 6000 and grows by 8% each year. Work out the population after 4 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-6, 4) and b is (3, 6). Work out 3a - 3b as a column vector.
3
Probability Trees3 marks
5 of 10 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 20 units wide and contains 80 values. Work out the frequency density.
5
Fractional and Negative Indices2 marks
Write 5^-1 as a fraction.

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