Daily Practice - Foundation Plus
31st January 1997
- 1Scale Drawings2 marks
A map has a scale of 1 : 50000. Two villages are 10 cm apart on the map. How far apart are they in real life, in km?
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 15°. How many sides does it have?
- 3Probability Trees3 marks
3 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Averages from Frequency Tables3 marks
In a survey 3 households own 1 car, 4 own 2 cars and 6 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 5Error Intervals2 marks
A number y is 41 when truncated to the nearest whole number. Write down the error interval for y.
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