Daily Practice

Higher

13th January 1986

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

1
Conditional Probability3 marks
22 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 88 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Fractional and Negative Indices3 marks
Work out 64^(2/3).
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 2x - 9, work out y when x = 3.
5
Repeated Percentage Change3 marks
A price rises by 15% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.

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