Daily Practice

Foundation

8th September 1959

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 0.4. It is thrown 100 times. How many heads would you expect?
2
Frequency Polygons2 marks
A frequency polygon has plotted frequencies of 7, 11, 4 and 2. How many values are in the whole data set?
3
Error Intervals2 marks
A number y is 55 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 3x - 1 when x = -6.
5
Writing and Simplifying Ratio1 mark
Write the ratio 12 : 21 in its simplest form.

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