Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
30th August 2022
- 1Writing and Simplifying Ratio2 marks
Write the ratio 8 : 72 in the form 1 : n.
- 2Vectors2 marks
a is the column vector (-3, 6) and b is (-7, -5). Work out a + b as a column vector.
- 3Probability 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.
- 4Frequency Trees3 marks
140 people were surveyed. 80 were adults, of whom 40 said yes. 10 of the children said yes. How many said yes altogether?
- 5Error Intervals2 marks
A number y is 58 when truncated to the nearest whole number. Write down the error interval for y.
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