Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

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

1st August 2000

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

1
Writing and Simplifying Ratio2 marks
Write the ratio 3 : 12 in the form 1 : n.
2
Vectors2 marks
a is the column vector (8, -4) and b is (3, 2). 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
Capture Recapture3 marks
35 voles are marked and released. Later 36 are caught, of which 3 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 32 when truncated to the nearest whole number. Write down the error interval for y.

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