Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
11th January 2018
- 1Best Buy Questions3 marks
A pack of 7 teabags costs £3.85. A pack of 21 costs £10.50. Which pack is better value?
- 2Vectors2 marks
a is the column vector (8, 1) and b is (-6, 4). Work out a + b as a column vector.
- 3Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Two Way Tables3 marks
Of 71 students, 41 study French, 31 study German and 12 study both. How many study neither?
- 5Error Intervals2 marks
A number y is 30 when truncated to the nearest whole number. Write down the error interval for y.
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