Daily Practice

Foundation

20th June 1989

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 0.25. It is thrown 100 times. How many heads would you expect?
2
Two Way Tables3 marks
In a group of 50 students, 70 are boys. 20 boys and -10 girls bring a packed lunch. How many students do not?
3
Estimating2 marks
Estimate 836 x 20 by rounding each number to 1 significant figure.
4
Substitution2 marks
Work out the value of 4x + 8 when x = 9.
5
Percentages2 marks
Work out 10% of 400.

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