Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

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

18th April 2020

5 questions · 11 marks · Grades 4-6 · 128 question types in this band

1
Ratio2 marks
Red and blue marbles are in the ratio 3 : 7. There are 18 red marbles. How many marbles are there altogether?
2
Vectors2 marks
a is the column vector (-1, 7) and b is (-8, 0). 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
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 232 values. What cumulative frequency do you read across from to estimate the lower quartile?
5
Error Intervals2 marks
A number y is 60 when truncated to the nearest whole number. Write down the error interval for y.

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