Daily Practice - Foundation Plus
24th March 1994
- 1Best Buy Questions3 marks
A pack of 11 batteries costs £3.30. A pack of 22 costs £5.72. Which pack is better value?
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 20°. How many sides does it have?
- 3Probability Trees3 marks
2 of 7 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 = 8x + 5. Use it to estimate y when x = 9.
- 5Error Intervals2 marks
A number y is 34 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 March 1994, including the monthly compilation PDF.