Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
19 students study Spanish and 8 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 10 units wide and contains 5 values. Work out the frequency density.
- 3Fractional and Negative Indices3 marks
Work out 81^(3/2).
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 - 9x + 1 = 0, to 2 decimal places.
- 5Repeated Percentage Change3 marks
A town's population is 3000 and grows by 3% each year. Work out the population after 4 years, to the nearest whole number.
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