Foundation
26th August 1958
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.4. It is thrown 500 times. How many heads would you expect?
- 2Frequency Trees3 marks
60 students were asked how they travel. 80 walked, and of those 15 were late. How many walkers were on time?
- 3Error Intervals2 marks
A number y is 79 when truncated to the nearest whole number. Write down the error interval for y.
- 4Substitution2 marks
Work out the value of 8x + 4 when x = 9.
- 5Scale Drawings2 marks
A map has a scale of 1 : 50000. Two villages are 2 cm apart on the map. How far apart are they in real life, in km?
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1958, including the monthly compilation PDF.