Daily Practice

Foundation Plus

15th October 1972

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Real Life and Distance Time Graphs2 marks
Erin drives 100 km in 2.5 hours. Work out the average speed in km/h.
2
Vectors2 marks
a is the column vector (0, 8) and b is (0, -8). Work out a + b as a column vector.
3
Probability Trees3 marks
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
140 people were surveyed. 40 were adults, of whom 10 said yes. 10 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 10 when truncated to the nearest whole number. Write down the error interval for y.

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