Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
- 1Best Buy Questions3 marks
A pack of 10 batteries costs £2.00. A pack of 20 costs £3.40. Which pack is better value?
- 2Vectors2 marks
a is the column vector (8, -4) and b is (-3, 6). Work out a + b as a column vector.
- 3Probability Trees3 marks
5 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
A cumulative frequency graph is drawn for 188 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 5Error Intervals2 marks
A number y is 19 when truncated to the nearest whole number. Write down the error interval for y.
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Recent Foundation Plus sheets
Every sheet is deterministic: the same date always regenerates the same five questions. All of May 2008, including the monthly compilation PDF.