Higher Plus
29th January 1961
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 7 cm by 14 cm by 11 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
- 2Conditional Probability3 marks
A bag holds 6 red and 6 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
- 3Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 0.4, one 20 units wide with density 3.5. How many values in total?
- 4Bounds3 marks
x = 51 and y = 14, each correct to the nearest whole number. Work out the upper bound of x - y.
- 5The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts 14, 27, 46, 71. Work out the second difference, and the coefficient of n^2.
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