Daily Practice

Foundation Plus

18th May 1987

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Real Life and Distance Time Graphs3 marks
A coach travels 30 km in 0.5 hours, then 30 km in 1 hour. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (7, 0) and b is (6, 5). Work out a + b as a column vector.
3
Probability Trees3 marks
2 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 9, 8, 8, 4. Write down the cumulative frequency at the end of the third class.
5
Error Intervals2 marks
A number y is 61 when truncated to the nearest whole number. Write down the error interval for y.

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