Daily Practice · Higher

Daily Practice - Higher

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

12th June 2005

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 = 2, y = 50. Work out y when x = 10.
2
Vectors3 marks
a is the column vector (-3, -1) and b is (-2, -5). Work out 4a - 2b as a column vector.
3
Probability Trees3 marks
3 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 53. Work out the range.
5
Surds2 marks
Write sqrt(75) in the form a sqrt(b), where b is as small as possible.

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