Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
30th June 2013
- 1Real Life and Distance Time Graphs2 marks
Noah drives 67.5 km in 1.5 hours. Work out the average speed in km/h.
- 2Vectors2 marks
a is the column vector (8, 8) and b is (7, -2). 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.
- 4Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 20 < x <= 25. The frequencies in order are 3, 16, 11, 21, 7. Write down the modal class.
- 5Error Intervals2 marks
A number y is 63 when truncated to the nearest whole number. Write down the error interval for y.
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