Daily Practice · Higher

Daily Practice - Higher

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

8th September 2002

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 = 9, y = 60. Work out y when x = 12.
2
Vectors3 marks
a is the column vector (-1, 5) and b is (-3, 0). Work out 5a - 5b as a column vector.
3
Probability Trees3 marks
4 of 6 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 3 and a maximum of 15. Work out the range.
5
Standard Form3 marks
Work out (30 x 10^9) / (5 x 10^5). Give your answer in standard form.

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