Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
29th March 2017
- 1Percentages2 marks
Work out 10% of 260.
- 2Vectors2 marks
a is the column vector (-5, -8) and b is (-1, 8). Work out a + b as a column vector.
- 3Probability Trees3 marks
1 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Frequency Trees3 marks
170 people were surveyed. 80 were adults, of whom 40 said yes. 25 of the children said yes. How many said yes altogether?
- 5Error Intervals2 marks
A number y is 23 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 March 2017, including the monthly compilation PDF.