Daily Practice

Higher

6th November 1982

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

1
Conditional Probability3 marks
22 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 2, lower quartile 8, median 10, upper quartile 12 and maximum 16. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 9^-1 as a fraction.
4
Quadratic Formula3 marks
Work out the discriminant of 2x^2 + 2x + 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 = 5, y = 200. Work out y when x = 8.

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