Daily Practice

Foundation

25th November 1975

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 50 times. How many heads would you expect?
2
Frequency Trees3 marks
80 people were surveyed. 30 were adults, of whom 15 said yes. 25 of the children said yes. How many said yes altogether?
3
Error Intervals2 marks
A number y is 63 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 7x + 11 when x = 5.
5
Scale Drawings2 marks
A map has a scale of 1 : 25000. Two villages are 6 cm apart on the map. How far apart are they in real life, in km?

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