Daily Practice

Foundation Plus

21st February 1969

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

1
Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 9 cm apart on the map. How far apart are they in real life, in km?
2
Vectors2 marks
a is the column vector (8, 0) and b is (7, 2). Work out a + b as a column vector.
3
Probability Trees3 marks
8 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
20 voles are marked and released. Later 12 are caught, of which 3 are marked. Estimate the population.
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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