Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

24th December 1993

5 questions · 11 marks · Grades 4-6 · 128 question types in this band

1
Scale Drawings2 marks
A map has a scale of 1 : 10000. Two villages are 8 cm apart on the map. How far apart are they in real life, in km?
2
Vectors2 marks
a is the column vector (-8, 5) and b is (-2, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
1 of 9 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 30 < x <= 40. The frequencies in order are 21, 16, 7, 3, 11. Write down the modal class.
5
Error Intervals2 marks
A number y is 22 when truncated to the nearest whole number. Write down the error interval for y.

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