Daily Practice

Foundation

7th January 1986

5 questions · 12 marks · Grades 3-4 · 87 question types in this band

1
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 50 times. How many heads would you expect?
2
Frequency Trees3 marks
160 people were surveyed. 50 were adults, of whom 25 said yes. 15 of the children said yes. How many said yes altogether?
3
Estimating2 marks
Estimate 616 x 36 by rounding each number to 1 significant figure.
4
Substitution2 marks
Work out the value of 5x + 3 when x = 3.
5
Percentages2 marks
Work out 25% of 180.

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