Daily Practice

Higher

10th July 1986

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

1
Repeated Percentage Change3 marks
A town's population is 12500 and grows by 5% each year. Work out the population after 6 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-3, -2) and b is (6, -2). Work out 2a - 3b as a column vector.
3
Probability Trees3 marks
3 of 5 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 10 values. Work out the frequency density.
5
Fractional and Negative Indices2 marks
Write 8^-1 as a fraction.

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