Daily Practice

Higher

12th September 1981

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

1
Conditional Probability3 marks
16 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Box Plots2 marks
A box plot has minimum 5, lower quartile 7, median 11, upper quartile 18 and maximum 21. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 16^(3/2).
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 5x - 1, work out y when x = -2.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 24. Work out y when x = 7.

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