Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
27th October 2011
- 1Best Buy Questions3 marks
A pack of 10 pencils costs £4.50. A pack of 30 costs £12.00. Which pack is better value?
- 2Vectors2 marks
a is the column vector (7, 7) and b is (1, -4). Work out a + b as a column vector.
- 3Probability Trees3 marks
3 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Frequency Trees3 marks
240 people were surveyed. 60 were adults, of whom 20 said yes. 45 of the children said yes. How many said yes altogether?
- 5Error Intervals2 marks
A number y is 35 when truncated to the nearest whole number. Write down the error interval for y.
You are looking at an earlier sheet. Today's sheet is the one that adds a day.
Your run is kept in this browser only, and there is no account.
Recent Foundation Plus sheets
Every sheet is deterministic: the same date always regenerates the same five questions. All of October 2011, including the monthly compilation PDF.