Daily Practice

Foundation Plus

23rd May 1991

5 questions · 12 marks · Grades 4-6 · 128 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
Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 0 < x <= 10. The frequencies in order are 16, 11, 7, 3, 21. Write down the modal class.
3
Standard Form2 marks
Write 0.0000644 in standard form.
4
Inequalities on Graphs3 marks
Does the point (1, -9) satisfy y > -3x - 4?
5
Speed and Density2 marks
A block has volume 50 cm^3 and density 3 g/cm^3. Work out its mass.

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