Daily Practice

Higher

26th May 1988

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

1
Conditional Probability3 marks
23 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Histograms2 marks
A histogram class is 4 units wide and contains 8 values. Work out the frequency density.
3
Surds2 marks
Write sqrt(98) in the form a sqrt(b), where b is as small as possible.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 2x - 3, work out y when x = -1.
5
Repeated Percentage Change3 marks
A town's population is 25000 and grows by 5% each year. Work out the population after 2 years, to the nearest whole number.

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