Daily Practice

Higher

13th July 1963

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

1
Conditional Probability3 marks
18 students study Spanish and 8 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 8, lower quartile 12, median 16, upper quartile 18 and maximum 23. Work out the interquartile range.
3
Standard Form2 marks
Work out (3 x 10^7) x (2 x 10^6). Give your answer in standard form.
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 + 3x + 6 = 0 and say how many real solutions it has.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 45. Work out y when x = 8.

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