Daily Practice

Higher

13th June 1987

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

1
Conditional Probability3 marks
24 students study Spanish and 9 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 7, lower quartile 17, median 27, upper quartile 32 and maximum 41. Work out the interquartile range.
3
Standard Form3 marks
Work out (18 x 10^7) / (2 x 10^5). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 5x - 2 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 48. Work out y when x = 7.

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