Daily Practice

Foundation Plus

12th April 1987

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

1
Real Life and Distance Time Graphs2 marks
Callum drives 150 km in 2.5 hours. Work out the average speed in km/h.
2
Vectors2 marks
a is the column vector (-6, -2) and b is (5, -4). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 6 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 height of a tree and its age. What type of correlation would you expect?
5
Error Intervals2 marks
A number y is 79 when truncated to the nearest whole number. Write down the error interval for y.

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