Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
28th March 2024
- 1Repeated Percentage Change3 marks
A town's population is 22500 and grows by 3% each year. Work out the population after 4 years, to the nearest whole number.
- 2Vectors3 marks
a is the column vector (6, -1) and b is (5, 3). Work out 5a - 5b as a column vector.
- 3Probability Trees3 marks
3 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Histograms2 marks
A histogram class is 5 units wide and contains 2.5 values. Work out the frequency density.
- 5Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.
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