Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

8th July 1991

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

1
Real Life and Distance Time Graphs3 marks
A coach travels 30 km in 1.5 hours, then 20 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 (6, -2) and b is (0, 5). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 8x + 25. Use it to estimate y when x = 10.
5
Error Intervals2 marks
A number y is 69 when truncated to the nearest whole number. Write down the error interval for y.

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