Daily Practice

Foundation Plus

25th March 1963

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

1
Real Life and Distance Time Graphs3 marks
A coach travels 20 km in 0.5 hours, then 20 km in 0.5 hours. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (-3, 1) and b is (0, 8). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 3, lower quartile 6, median 13, upper quartile 18 and maximum 22. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 50 when truncated to the nearest whole number. Write down the error interval for y.

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