Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

29th November 1991

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

1
Scale Drawings2 marks
A map has a scale of 1 : 50000. Two villages are 5 cm apart on the map. How far apart are they in real life, in km?
2
Vectors2 marks
a is the column vector (1, 0) and b is (8, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
5 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
25 fish are marked and released. Later 28 are caught, of which 4 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 39 when truncated to the nearest whole number. Write down the error interval for y.

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