Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
14th January 2014
- 1Writing and Simplifying Ratio2 marks
Write the ratio 2 : 12 in the form 1 : n.
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 18°. How many sides does it have?
- 3Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 10 < x <= 15. The frequencies in order are 11, 3, 16, 21, 7. Write down the modal class.
- 5Error Intervals2 marks
A number y is 85 when truncated to the nearest whole number. Write down the error interval for y.
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