Daily Practice · Higher

Daily Practice - Higher

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

23rd February 2008

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

1
Conditional Probability3 marks
15 students study Spanish and 7 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 13, lower quartile 23, median 27, upper quartile 32 and maximum 42. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 3^-3 as a fraction.
4
Solving Quadratics3 marks
Solve x^2 - 3x - 4 = 0.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 125. Work out y when x = 9.

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