Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
- 1Best Buy Questions3 marks
A pack of 7 pencils costs £3.15. A pack of 21 costs £9.24. Which pack is better value?
- 2Vectors2 marks
a is the column vector (6, 4) and b is (-3, 0). Work out a + b as a column vector.
- 3Probability Trees3 marks
3 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Frequency Trees3 marks
100 people were surveyed. 30 were adults, of whom 15 said yes. 25 of the children said yes. How many said yes altogether?
- 5Error Intervals2 marks
A number y is 83 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 May 2019, including the monthly compilation PDF.