Daily Practice

Foundation Plus

5th December 1983

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 0.5 hours, then 70 km in 2 hours. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (8, -2) and b is (-6, 5). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 8 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 = 5x + 19. Use it to estimate y when x = 5.
5
Error Intervals2 marks
A number y is 70 when truncated to the nearest whole number. Write down the error interval for y.

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