Daily Practice · Higher

Daily Practice - Higher

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

21st January 2012

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

1
Conditional Probability3 marks
27 students study Spanish and 8 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 15, lower quartile 23, median 31, upper quartile 40 and maximum 45. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 25^(3/2).
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 2x - 3, work out y when x = 5.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 2.

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