Daily Practice · Higher

Daily Practice - Higher

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

8th May 2003

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
22 students study Spanish and 11 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 5 units wide and contains 10 values. Work out the frequency density.
3
Standard Form3 marks
Work out (35 x 10^8) / (7 x 10^2). Give your answer in standard form.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 + 7x + 9 = 0 and say how many real solutions it has.
5
Repeated Percentage Change3 marks
A town's population is 3000 and grows by 4% each year. Work out the population after 3 years, to the nearest whole number.

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