Daily Practice

Foundation Plus

12th March 1986

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

1
Percentages2 marks
Work out 60% of 220.
2
Vectors2 marks
a is the column vector (7, -8) and b is (0, 4). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Scatter Graphs2 marks
A scatter graph plots the number of pages in a book and its price. What type of correlation would you expect?
5
Error Intervals2 marks
A number y is 44 when truncated to the nearest whole number. Write down the error interval for y.

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