Daily Practice

Foundation

23rd July 1985

5 questions · 10 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 100 times. How many heads would you expect?
2
Pie Charts2 marks
A pie chart shows 90 people. 6 of them chose art. Work out the angle of that sector.
3
Error Intervals2 marks
A number y is 58 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 8x + 12 when x = -5.
5
Writing and Simplifying Ratio1 mark
Write the ratio 12 : 18 in its simplest form.

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