Daily Practice

Foundation

8th February 1972

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 0.4. It is thrown 100 times. How many heads would you expect?
2
Frequency Trees3 marks
170 people were surveyed. 80 were adults, of whom 15 said yes. 35 of the children said yes. How many said yes altogether?
3
Error Intervals2 marks
A number y is 41 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 7x + 10 when x = 2.
5
Conversions and Units1 mark
Convert 46 kg into g.

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