Daily Practice

Foundation Plus

5th May 1984

5 questions · 13 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 250 times. How many heads would you expect?
2
Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 5 < x <= 10. The frequencies in order are 3, 16, 7, 21, 11. Write down the modal class.
3
Standard Form2 marks
Write 0.00000801 in standard form.
4
Inequalities on Graphs3 marks
Does the point (5, -9) satisfy y > -3x - 1?
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 30. Work out y when x = 4.

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