Daily Practice

Foundation Plus

26th February 1975

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

1
Percentages2 marks
Work out 30% of 240.
2
Vectors2 marks
a is the column vector (1, 6) and b is (-7, 5). Work out a + b as a column vector.
3
Probability Trees3 marks
2 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 5, lower quartile 8, median 11, upper quartile 18 and maximum 27. Work out the interquartile range.
5
Error Intervals2 marks
A number y is 26 when truncated to the nearest whole number. Write down the error interval for y.

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