Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

Grades 4-6 - the Foundation / Higher crossover zone.

25th April 2005

5 questions · 13 marks · Grades 4-6 · 128 question types in this band

1
Real Life and Distance Time Graphs3 marks
A coach travels 80 km in 1.5 hours, then 40 km in 1.5 hours. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (2, 0) and b is (1, 0). Work out a + b as a column vector.
3
Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
110 people were surveyed. 80 were adults, of whom 30 said yes. 15 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 67 when truncated to the nearest whole number. Write down the error interval for y.

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