Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
27th November 2005
- 1Real Life and Distance Time Graphs2 marks
Amelia drives 150 km in 3 hours. Work out the average speed in km/h.
- 2Vectors2 marks
a is the column vector (-7, -4) and b is (-1, 0). Work out a + b as a column vector.
- 3Probability Trees3 marks
4 of 10 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 10, the first being 10 < x <= 20. The frequencies in order are 21, 11, 7, 16, 3. Write down the modal class.
- 5Error Intervals2 marks
A number y is 81 when truncated to the nearest whole number. Write down the error interval for y.
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