Daily Practice

Higher

4th November 1982

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Repeated Percentage Change3 marks
A town's population is 15500 and grows by 5% each year. Work out the population after 2 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (4, 5) and b is (-6, 6). Work out 5a - 3b as a column vector.
3
Probability Trees3 marks
7 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 4 units wide and contains 12 values. Work out the frequency density.
5
Fractional and Negative Indices3 marks
Work out 27^(2/3).

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