Daily Practice · Higher

Daily Practice - Higher

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

11th July 2004

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

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 5, y = 8. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (-1, 6) and b is (0, 1). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
3 of 9 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 4 and a maximum of 31. Work out the range.
5
Fractional and Negative Indices3 marks
Work out 16^(3/2).

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