Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
27th February 2014
- 1Conditional Probability3 marks
17 students study Spanish and 10 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 3 values. Work out the frequency density.
- 3Reverse Percentages3 marks
A bill is £336 including VAT at 20%. Work out the amount before VAT.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 7x + 4, work out y when x = 0.
- 5Repeated Percentage Change3 marks
A town's population is 8500 and grows by 8% each year. Work out the population after 2 years, to the nearest whole number.
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