Daily Practice

Higher

29th September 1988

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

1
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.
2
Histograms2 marks
A histogram class is 4 units wide and contains 10 values. Work out the frequency density.
3
Fractional and Negative Indices3 marks
Work out 25^(3/2).
4
Equation of a Line3 marks
A line has gradient 5 and passes through (1, -3). Work out its equation.
5
Repeated Percentage Change3 marks
A town's population is 6000 and grows by 5% each year. Work out the population after 3 years, to the nearest whole number.

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