Daily Practice · Higher

Daily Practice - Higher

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

15th April 2007

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 = 4, y = 18. Work out y when x = 6.
2
Vectors3 marks
a is the column vector (6, -5) and b is (-2, 1). Work out 5a - 3b as a column vector.
3
Probability Trees3 marks
3 of 5 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 15 and a maximum of 49. Work out the range.
5
Bounds2 marks
A mass is 10.6 kg, correct to 1 decimal place. Write down the upper bound.

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