Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
10th March 2005
- 1Conditional Probability3 marks
12 students study Spanish and 4 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 8 values. Work out the frequency density.
- 3Fractional and Negative Indices3 marks
Work out 25^(3/2).
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 + 12x - 2 = 0, to 2 decimal places.
- 5Repeated Percentage Change3 marks
A town's population is 4500 and grows by 6% each year. Work out the population after 6 years, to the nearest whole number.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of March 2005, including the monthly compilation PDF.