Foundation Plus
11th June 1979
- 1Real Life and Distance Time Graphs3 marks
A coach travels 80 km in 0.5 hours, then 30 km in 1 hour. Work out the average speed for the whole journey, to 1 decimal place.
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 36°. How many sides does it have?
- 3Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture3 marks
30 voles are marked and released. Later 99 are caught, of which 9 are marked. Estimate the population.
- 5Error Intervals2 marks
A number y is 77 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 June 1979, including the monthly compilation PDF.