Daily Practice · Higher

Daily Practice - Higher

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

29th March 2001

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Repeated Percentage Change3 marks
A town's population is 10500 and grows by 8% each year. Work out the population after 4 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-3, 6) and b is (-4, 2). Work out 2a - 3b as a column vector.
3
Probability Trees3 marks
4 of 9 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 30 values. Work out the frequency density.
5
Standard Form3 marks
Work out (72 x 10^12) / (9 x 10^5). Give your answer in standard form.

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