Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

16th April 1993

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 7.5 cm apart on the map. How far apart are they in real life, in km?
2
Vectors2 marks
a is the column vector (-4, -1) and b is (8, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
5 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 6 own 2 cars and 8 own 3 cars. Work out the mean number of cars, to 2 decimal places.
5
Error Intervals2 marks
A number y is 11 when truncated to the nearest whole number. Write down the error interval for y.

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