Daily Practice · Higher

Daily Practice - Higher

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

8th May 2011

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

1
Probability Trees3 marks
6 of 8 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 a minimum of 20 and a maximum of 73. Work out the range.
3
Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
4
Equation of a Line3 marks
A line has gradient 2 and passes through (4, 14). Work out its equation.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 8, y = 24. Work out y when x = 6.

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