Daily Practice

Foundation

15th August 1967

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 0.4. It is thrown 500 times. How many heads would you expect?
2
Averages from Frequency Tables3 marks
In a survey 6 households own 1 car, 6 own 2 cars and 9 own 3 cars. Work out the mean number of cars, to 2 decimal places.
3
Error Intervals2 marks
A number y is 10 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 6x - 9 when x = 4.
5
Percentages2 marks
Work out 25% of 200.

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