Daily Practice

Higher

25th October 1990

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
1 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 20 units wide and contains 40 values. Work out the frequency density.
3
Standard Form2 marks
Work out (8 x 10^6) x (4 x 10^-3). Give your answer in standard form.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 4^x is drawn. Work out y when x = 3, and write down where the curve crosses the y-axis.
5
Repeated Percentage Change3 marks
A town's population is 34500 and grows by 5% each year. Work out the population after 3 years, to the nearest whole number.

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