Daily Practice

Foundation

16th January 1990

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 Polygons2 marks
A frequency polygon has plotted frequencies of 11, 10, 8 and 10. How many values are in the whole data set?
3
Error Intervals2 marks
A number y is 78 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 8x - 6 when x = 6.
5
Percentages2 marks
Work out 75% of 300.

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