Foundation Plus
23rd January 1971
- 1Inequalities on Graphs3 marks
Does the point (-3, 3) satisfy y > -x + 6?
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 33. Work out y when x = 5.
- 3Transformations2 marks
The point (7, -1) is rotated 90° anticlockwise about the origin. Write down the coordinates of the image.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 100 times. How many heads would you expect?
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 10 < x <= 20. The frequencies in order are 11, 7, 21, 3, 16. Write down the modal class.
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