Daily Practice

Foundation

11th December 1973

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 250 times. How many heads would you expect?
2
Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 4 own 2 cars and 6 own 3 cars. Work out the mean number of cars, to 2 decimal places.
3
Estimating2 marks
Estimate 159 x 22 by rounding each number to 1 significant figure.
4
Substitution2 marks
Work out the value of 8x + 8 when x = -2.
5
Percentages2 marks
Work out 75% of 160.

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