Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
24th October 2005
- 1Conditional Probability3 marks
20 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 164 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Standard Form2 marks
Work out (4 x 10^7) x (5 x 10^-5). Give your answer in standard form.
- 4Inequalities on Graphs3 marks
Does the point (0, 0) satisfy y > 2x - 7?
- 5Repeated Percentage Change3 marks
A price rises by 15% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
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