Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
30th September 2016
- 1Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 8 cm apart on the map. How far apart are they in real life, in km?
- 2Vectors2 marks
a is the column vector (3, -2) and b is (0, 8). Work out a + b as a column vector.
- 3Probability Trees3 marks
5 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 10 < x <= 15. The frequencies in order are 16, 7, 3, 21, 11. Write down the modal class.
- 5Error Intervals2 marks
A number y is 34 when truncated to the nearest whole number. Write down the error interval for y.
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