Higher
29th September 1990
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 12. Work out y when x = 7.
- 2Congruent Triangles2 marks
Two triangles are known to be congruent because two angles and the side between them are equal in both. Which congruence condition is this?
- 3Conditional Probability3 marks
29 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has minimum 4, lower quartile 13, median 23, upper quartile 32 and maximum 39. Work out the interquartile range.
- 5The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
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