Daily Practice · Higher

Daily Practice - Higher

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

7th September 1998

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

1
Conditional Probability3 marks
17 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 232 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Fractional and Negative Indices3 marks
Work out 8^(2/3).
4
Solving Quadratics3 marks
Solve x^2 - 7x + 12 = 0.
5
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.

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