Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

Grades 4-6 - the Foundation / Higher crossover zone.

23rd November 1999

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

1
Writing and Simplifying Ratio2 marks
Write the ratio 2 : 8 in the form 1 : n.
2
Vectors2 marks
a is the column vector (-5, 7) and b is (7, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
240 people were surveyed. 50 were adults, of whom 15 said yes. 10 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 66 when truncated to the nearest whole number. Write down the error interval for y.

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