Daily Practice

Foundation Plus

7th May 1989

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

1
Real Life and Distance Time Graphs2 marks
Amelia drives 100 km in 2.5 hours. Work out the average speed in km/h.
2
Vectors2 marks
a is the column vector (4, 3) and b is (6, -2). Work out a + b as a column vector.
3
Probability Trees3 marks
6 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 + 5. Use it to estimate y when x = 8.
5
Error Intervals2 marks
A number y is 35 when truncated to the nearest whole number. Write down the error interval for y.

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