Daily Practice - Foundation
28th January 1992
- 1Proportion2 marks
6 identical batteries cost £3.60. Work out the cost of 4 of the same batteries.
- 2Angles in Polygons2 marks
Work out the sum of the interior angles of a octagon.
- 3Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 200 times. How many heads would you expect?
- 4Averages from Frequency Tables3 marks
In a survey 6 households own 1 car, 2 own 2 cars and 7 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 5Negative Numbers2 marks
At midnight the temperature in Aviemore is -9°C. By noon it has risen by 9°C. What is the temperature at noon?
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