Daily Practice · Higher

Daily Practice - Higher

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

8th April 2004

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

1
Conditional Probability3 marks
15 students study Spanish and 4 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 2 units wide and contains 3 values. Work out the frequency density.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.666... as a fraction in its simplest form.
4
Quadratic Formula3 marks
Work out the discriminant of 4x^2 + 11x + 8 = 0 and say how many real solutions it has.
5
Repeated Percentage Change3 marks
A town's population is 30000 and grows by 6% each year. Work out the population after 5 years, to the nearest whole number.

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