Daily Practice

Higher

23rd September 1972

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

1
Conditional Probability3 marks
20 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 7, lower quartile 14, median 22, upper quartile 29 and maximum 34. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 6^-1 as a fraction.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 + 8x - 9 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 252. Work out y when x = 7.

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