Daily Practice

Foundation

20th September 1960

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 0.1. It is thrown 500 times. How many heads would you expect?
2
Frequency Trees3 marks
130 people were surveyed. 50 were adults, of whom 15 said yes. 15 of the children said yes. How many said yes altogether?
3
Error Intervals2 marks
A number y is 29 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 4x - 2 when x = 2.
5
Percentages2 marks
Work out 60% of 260.

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