Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

3rd October 1995

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

1
Writing and Simplifying Ratio2 marks
Write the ratio 2 : 8 in the form 1 : n.
2
Vectors2 marks
a is the column vector (-4, -7) and b is (-1, -3). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 7 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 7, lower quartile 13, median 17, upper quartile 22 and maximum 25. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 36 when truncated to the nearest whole number. Write down the error interval for y.

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