Daily Practice

Foundation Plus

25th January 1981

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

1
Real Life and Distance Time Graphs2 marks
Oliwia drives 100 km in 2 hours. Work out the average speed in km/h.
2
Vectors2 marks
a is the column vector (8, -2) and b is (6, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
2 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
60 fish are marked and released. Later 64 are caught, of which 8 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 78 when truncated to the nearest whole number. Write down the error interval for y.

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