Daily Practice

Foundation Plus

14th June 1975

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 4 : 5. There are 56 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (-6, 3) and b is (2, -6). Work out a + b as a column vector.
3
Probability Trees3 marks
1 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
Four classes in order have frequencies 4, 11, 6, 6. Write down the cumulative frequency at the end of the third class.
5
Error Intervals2 marks
A number y is 42 when truncated to the nearest whole number. Write down the error interval for y.

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