Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
21st September 2004
- 1Writing and Simplifying Ratio2 marks
Write the ratio 8 : 56 in the form 1 : n.
- 2Vectors2 marks
a is the column vector (-4, 6) and b is (-4, 0). Work out a + b as a column vector.
- 3Probability Trees3 marks
4 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 7, 11, 5, 10. Write down the cumulative frequency at the end of the third class.
- 5Error Intervals2 marks
A number y is 74 when truncated to the nearest whole number. Write down the error interval for y.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of September 2004, including the monthly compilation PDF.