Foundation Plus
28th September 1970
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 200 times. How many heads would you expect?
- 2Frequency Trees3 marks
110 people were surveyed. 80 were adults, of whom 15 said yes. 15 of the children said yes. How many said yes altogether?
- 3Standard Form2 marks
Write 0.000000939 in standard form.
- 4Simultaneous Equations3 marks
5 teas and 1 cake cost £11.25. 1 tea and 4 cakes cost £11.75. Find the price of a tea.
- 5Repeated Percentage Change3 marks
A town's population is 2000 and grows by 4% each year. Work out the population after 3 years, to the nearest whole number.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1970, including the monthly compilation PDF.