Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
21 students study Spanish and 6 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 92 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Standard Form2 marks
Work out (7 x 10^7) x (7 x 10^6). Give your answer in standard form.
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 + 6x - 2 = 0, to 2 decimal places.
- 5Repeated Percentage Change3 marks
A price rises by 20% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of May 2008, including the monthly compilation PDF.