Daily Practice · Higher

Daily Practice - Higher

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

3rd June 2006

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

1
Probability Trees3 marks
8 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 8, lower quartile 13, median 18, upper quartile 24 and maximum 29. Work out the interquartile range.
3
Standard Form3 marks
Work out (72 x 10^7) / (8 x 10^5). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 2x^2 + 5x + 3.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 12. Work out y when x = 7.

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