Daily Practice

Foundation Plus

9th April 1991

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

1
Writing and Simplifying Ratio2 marks
Write the ratio 5 : 30 in the form 1 : n.
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 20°. How many sides does it have?
3
Probability Trees3 marks
8 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 0 < x <= 10. The frequencies in order are 7, 3, 16, 11, 21. Write down the modal class.
5
Error Intervals2 marks
A number y is 41 when truncated to the nearest whole number. Write down the error interval for y.

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