Higher Plus
15th September 1986
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 4 cm by 4 cm by 5 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
- 2Conditional Probability3 marks
A bag holds 3 red and 11 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 2.5, one 20 units wide with density 0.8. How many values in total?
- 4Bounds3 marks
A block has mass 530 g (to the nearest 10 g) and volume 6 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
- 5Transforming Graphs y=f(x)3 marks
The point (0, -3) lies on y = f(x). Write down its image on y = f(x + 5).
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