Daily Practice

Foundation Plus

20th February 1988

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 0.2. It is thrown 50 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 11, 21, 16, 3, 7. Write down the modal class.
3
Standard Form2 marks
Write 199000 in standard form.
4
Inequalities on Graphs3 marks
Does the point (3, -6) satisfy y > 3x - 7?
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 42. Work out y when x = 10.

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