Foundation Plus
10th December 1982
- 1Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 2.5 cm apart on the map. How far apart are they in real life, in km?
- 2Vectors2 marks
a is the column vector (-8, -2) and b is (-8, 0). Work out a + b as a column vector.
- 3Probability Trees3 marks
1 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Scatter Graphs2 marks
A scatter graph plots the day of the month and the temperature at noon. What type of correlation would you expect?
- 5Error Intervals2 marks
A number y is 31 when truncated to the nearest whole number. Write down the error interval for y.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1982, including the monthly compilation PDF.