Higher
23rd July 1953
- 1Probability 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.
- 2Histograms2 marks
A histogram class is 20 units wide and contains 10 values. Work out the frequency density.
- 3Bounds2 marks
A mass is 260 kg, correct to the nearest 10. Write down the lower bound.
- 4Simultaneous Equations3 marks
2 teas and 1 cake cost £6.00. 3 teas and 3 cakes cost £12.15. Find the price of a tea.
- 5Repeated Percentage Change3 marks
A town's population is 16000 and grows by 5% each year. Work out the population after 2 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 July 1953, including the monthly compilation PDF.