Foundation Plus
23rd February 1979
- 1Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 8.5 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 18°. How many sides does it have?
- 3Probability Trees3 marks
1 of 6 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 the height of a tree and its age. What type of correlation would you expect?
- 5Error Intervals2 marks
A number y is 74 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 February 1979, including the monthly compilation PDF.