Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

18th September 1991

5 questions · 11 marks · Grades 4-6 · 128 question types in this band

1
Percentages2 marks
Work out 30% of 140.
2
Vectors2 marks
a is the column vector (-6, -6) and b is (6, 5). Work out a + b as a column vector.
3
Probability Trees3 marks
8 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
Four classes in order have frequencies 10, 3, 4, 9. Write down the cumulative frequency at the end of the third class.
5
Error Intervals2 marks
A number y is 25 when truncated to the nearest whole number. Write down the error interval for y.

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