Foundation Plus
9th November 1974
- 1Inequalities on Graphs3 marks
Does the point (2, 2) satisfy y > x + 3?
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 45. Work out y when x = 9.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 5 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 50 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 11, 16, 7, 21, 3. Write down the modal class.
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