Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

11th July 2009

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

1
Conditional Probability3 marks
10 students study Spanish and 3 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 10, lower quartile 19, median 27, upper quartile 33 and maximum 43. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 8^(2/3).
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 11x + 4 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 108. Work out y when x = 4.

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