Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

17th June 1995

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Ratio2 marks
Red and blue stickers are in the ratio 3 : 8. There are 9 red stickers. How many stickers are there altogether?
2
Vectors2 marks
a is the column vector (8, 4) and b is (-4, 7). 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
Averages from Frequency Tables3 marks
In a survey 6 households own 1 car, 7 own 2 cars and 6 own 3 cars. Work out the mean number of cars, to 2 decimal places.
5
Error Intervals2 marks
A number y is 37 when truncated to the nearest whole number. Write down the error interval for y.

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