Daily Practice

Foundation Plus

2nd February 1959

5 questions · 12 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 hour, then 30 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 (1, -1) and b is (-4, 2). 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 Graphs2 marks
A scatter graph plots the temperature outside and the number of ice creams sold. What type of correlation would you expect?
5
Error Intervals2 marks
A number y is 32 when truncated to the nearest whole number. Write down the error interval for y.

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