Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
24th June 2010
- 1Conditional Probability3 marks
18 students study Spanish and 3 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 2 units wide and contains 6 values. Work out the frequency density.
- 3Bounds2 marks
A mass is 700 kg, correct to the nearest 10. Write down the upper bound.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 6x - 8, work out y when x = 2.
- 5Repeated Percentage Change3 marks
A town's population is 22500 and grows by 4% each year. Work out the population after 3 years, to the nearest whole number.
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