Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
3rd April 2023
- 1Real Life and Distance Time Graphs3 marks
A coach travels 50 km in 0.5 hours, then 50 km in 1.5 hours. Work out the average speed for the whole journey, to 1 decimal place.
- 2Vectors2 marks
a is the column vector (-7, 6) and b is (-5, 3). Work out a + b as a column vector.
- 3Probability Trees3 marks
2 of 7 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, 11, 21, 16, 7. Write down the modal class.
- 5Error Intervals2 marks
A number y is 66 when truncated to the nearest whole number. Write down the error interval for y.
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