Higher
10th June 1966
- 1Capture Recapture2 marks
A capture-recapture estimate is made of the fish population of a pond. State one assumption the method relies on.
- 2The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 3Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = x - 3 that passes through (3, -3).
- 4Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 32. Work out y when x = 8.
- 5SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 7 cm, 24 cm and 25 cm. Work out the angle opposite the 7 cm side, to 1 decimal place.
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