Daily Practice

Foundation Plus

13th December 1954

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 1 hour. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (-6, -6) and b is (-1, -3). Work out a + b as a column vector.
3
Probability Trees3 marks
1 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 0 < x <= 10. The frequencies in order are 11, 21, 16, 3, 7. Write down the modal class.
5
Error Intervals2 marks
A number y is 42 when truncated to the nearest whole number. Write down the error interval for y.

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