Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

2nd November 1996

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 5 : 9. There are 75 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (-5, 6) and b is (5, -4). Work out a + b as a column vector.
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 10, lower quartile 16, median 19, upper quartile 27 and maximum 36. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 76 when truncated to the nearest whole number. Write down the error interval for y.

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