Daily Practice

Higher

23rd November 1989

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

1
Probability Trees3 marks
2 of 8 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
Fractional and Negative Indices2 marks
Write 6^-2 as a fraction.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 5^x is drawn. Work out y when x = 5, and write down where the curve crosses the y-axis.
5
Repeated Percentage Change3 marks
A town's population is 16500 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.

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