Foundation
21st March 1988
- 1Averages3 marks
Erin has 4 scores with a mean of 15. Scores 10, 14, 20 are known. Work out the missing score.
- 2Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 8 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 23 when truncated to the nearest whole number. Write down the error interval for y.
- 4Sequences (Nth Term)3 marks
Work out the nth term of the sequence 11, 3, -5, -13, ...
- 5Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 3 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 March 1988, including the monthly compilation PDF.