Daily Practice · Higher

Daily Practice - Higher

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

24th February 2012

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

1
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 16. Work out y when x = 11.
2
Vectors3 marks
a is the column vector (3, -6) and b is (-1, -6). Work out 5a - 3b as a column vector.
3
Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture2 marks
A capture-recapture estimate is made of the fish population of a pond. State one assumption the method relies on.
5
The Product Rule for Counting2 marks
A meal deal has 5 mains, 5 sides and 5 drinks. How many different meals are possible?

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