Daily Practice
Foundation
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5th August 1986
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 100 times. How many heads would you expect?
- 2Averages from Frequency Tables3 marks
In a survey 8 households own 1 car, 7 own 2 cars and 4 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 3Error Intervals2 marks
A number y is 60 when truncated to the nearest whole number. Write down the error interval for y.
- 4Substitution2 marks
Work out the value of 9x - 8 when x = 0.
- 5Percentages2 marks
Work out 40% of 240.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1986, including the monthly compilation PDF.