Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
12th September 2013
- 1Conditional Probability3 marks
9 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Histograms2 marks
A histogram class is 5 units wide and contains 7.5 values. Work out the frequency density.
- 3Surds2 marks
Write sqrt(50) in the form a sqrt(b), where b is as small as possible.
- 4Inequalities on Graphs3 marks
Does the point (1, -3) satisfy y > 2x - 1?
- 5Repeated Percentage Change3 marks
A town's population is 12000 and grows by 6% each year. Work out the population after 5 years, to the nearest whole number.
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