Daily Practice · Higher

Daily Practice - Higher

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

19th May 2018

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

1
Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Box Plots2 marks
A box plot has minimum 11, lower quartile 14, median 20, upper quartile 23 and maximum 29. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 25^(3/2).
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 + 7x - 10.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 144. Work out y when x = 2.

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