Foundation Plus
26th September 1986
- 1Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 9.5 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 45°. How many sides does it have?
- 3Probability Trees3 marks
3 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Scatter Graphs2 marks
A scatter graph plots a phone's age and its resale value. What type of correlation would you expect?
- 5Error Intervals2 marks
A number y is 67 when truncated to the nearest whole number. Write down the error interval for y.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1986, including the monthly compilation PDF.