Daily Practice

Foundation Plus

5th February 1955

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

1
Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 8. There are 39 red raffle tickets. How many raffle tickets are there altogether?
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 36°. How many sides does it have?
3
Probability Trees3 marks
1 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 11, lower quartile 14, median 21, upper quartile 30 and maximum 39. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 64 when truncated to the nearest whole number. Write down the error interval for y.

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