Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

15th October 2009

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
20 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Histograms2 marks
A histogram class is 10 units wide and contains 5 values. Work out the frequency density.
3
Standard Form2 marks
Work out (5 x 10^5) x (2 x 10^-4). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 9x - 8 = 0, to 2 decimal places.
5
Repeated Percentage Change3 marks
A town's population is 13000 and grows by 3% each year. Work out the population after 4 years, to the nearest whole number.

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