Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
23rd April 2015
- 1Conditional Probability3 marks
16 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 20 units wide and contains 40 values. Work out the frequency density.
- 3Fractional and Negative Indices3 marks
Work out 16^(3/2).
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 11x + 5 = 0, to 2 decimal places.
- 5Repeated Percentage Change3 marks
A town's population is 19500 and grows by 8% each year. Work out the population after 5 years, to the nearest whole number.
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