Daily Practice

Foundation Plus

22nd January 1961

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

1
Real Life and Distance Time Graphs2 marks
Jacob drives 112.5 km in 2.5 hours. Work out the average speed in km/h.
2
Vectors2 marks
a is the column vector (-7, -6) and b is (-1, -4). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 7 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 8, lower quartile 15, median 19, upper quartile 28 and maximum 32. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 53 when truncated to the nearest whole number. Write down the error interval for y.

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