Daily Practice · Higher

Daily Practice - Higher

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

29th May 1999

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

1
Conditional Probability3 marks
15 students study Spanish and 4 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 14, median 19, upper quartile 27 and maximum 30. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 36^(3/2).
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 - 6x - 8 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 225. Work out y when x = 9.

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