Daily Practice

Foundation Plus

9th May 1968

5 questions · 13 marks · Grades 4-6 · 128 question types in this band

1
Best Buy Questions3 marks
A pack of 8 pencils costs £1.20. A pack of 32 costs £4.16. Which pack is better value?
2
Vectors2 marks
a is the column vector (-1, 8) and b is (7, 1). Work out a + b as a column vector.
3
Probability Trees3 marks
7 of 10 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 4 households own 1 car, 2 own 2 cars and 9 own 3 cars. Work out the mean number of cars, to 2 decimal places.
5
Error Intervals2 marks
A number y is 63 when truncated to the nearest whole number. Write down the error interval for y.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1968, including the monthly compilation PDF.