Daily Practice

Foundation Plus

24th October 1984

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

1
Percentages2 marks
Work out 20% of 300.
2
Vectors2 marks
a is the column vector (-2, 3) and b is (-8, 3). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 9 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 a minimum of 10 and a maximum of 39. Work out the range.
5
Error Intervals2 marks
A number y is 73 when truncated to the nearest whole number. Write down the error interval for y.

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