Daily Practice · Higher

Daily Practice - Higher

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

16th March 2008

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

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 7, y = 2. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (1, 0) and b is (-6, -1). Work out 2a - 3b as a column vector.
3
Probability Trees3 marks
6 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has a minimum of 16 and a maximum of 32. Work out the range.
5
Fractional and Negative Indices2 marks
Write 4^-3 as a fraction.

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