Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
13th February 2003
- 1Conditional Probability3 marks
17 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 20 units wide and contains 50 values. Work out the frequency density.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.6161... as a fraction in its simplest form.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 8x - 9, work out y when x = 1.
- 5Repeated Percentage Change3 marks
A town's population is 34000 and grows by 6% each year. Work out the population after 3 years, to the nearest whole number.
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