Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

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

1st September 2001

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

1
Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 5. There are 12 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (0, -8) and b is (0, 0). 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
Capture Recapture3 marks
55 fish are marked and released. Later 28 are caught, of which 4 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 71 when truncated to the nearest whole number. Write down the error interval for y.

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