Daily Practice

Foundation

29th January 1991

5 questions · 11 marks · Grades 3-4 · 87 question types in this band

1
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 50 times. How many heads would you expect?
2
Frequency Trees3 marks
140 people were surveyed. 90 were adults, of whom 5 said yes. 15 of the children said yes. How many said yes altogether?
3
Error Intervals2 marks
A number y is 46 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 5x - 1 when x = 1.
5
Conversions and Units1 mark
Convert 26 cm into mm.

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