Daily Practice · Higher

Daily Practice - Higher

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

15th January 2015

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

1
Repeated Percentage Change3 marks
A town's population is 28000 and grows by 6% each year. Work out the population after 4 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (6, -3) and b is (-6, 1). Work out 3a - 5b 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
Histograms2 marks
A histogram class is 10 units wide and contains 40 values. Work out the frequency density.
5
The Product Rule for Counting2 marks
A meal deal has 9 mains, 7 sides and 2 drinks. How many different meals are possible?

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