Foundation Plus
29th March 1986
- 1Inequalities on Graphs3 marks
Does the point (4, -7) satisfy y > -x - 1?
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 50. Work out y when x = 10.
- 3Transformations2 marks
The point (-3, -2) is rotated 90° clockwise about the origin. Write down the coordinates of the image.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 200 times. How many heads would you expect?
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 0 < x <= 10. The frequencies in order are 16, 21, 3, 7, 11. Write down the modal class.
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