Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

23rd November 1992

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

1
Real Life and Distance Time Graphs3 marks
A coach travels 40 km in 1 hour, then 70 km in 1 hour. Work out the average speed for the whole journey, to 1 decimal place.
2
Vectors2 marks
a is the column vector (-2, 1) and b is (4, -1). Work out a + b as a column vector.
3
Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 10 < x <= 20. The frequencies in order are 7, 11, 16, 21, 3. Write down the modal class.
5
Error Intervals2 marks
A number y is 12 when truncated to the nearest whole number. Write down the error interval for y.

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