Foundation Plus
18th January 1979
- 1Best Buy Questions3 marks
A pack of 8 pencils costs £4.00. A pack of 24 costs £10.80. Which pack is better value?
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 24°. How many sides does it have?
- 3Probability Trees3 marks
3 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 4x + 18. Use it to estimate y when x = 4.
- 5Error Intervals2 marks
A number y is 23 when truncated to the nearest whole number. Write down the error interval for y.
You are looking at an earlier sheet. Today's sheet is the one that adds a day.
Your run is kept in this browser only, and there is no account.
Recent Foundation Plus sheets
Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1979, including the monthly compilation PDF.