Higher Plus
12th August 1962
- 1Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 1.5, one 5 units wide with density 3.5. How many values in total?
- 2Bounds3 marks
x = 94 and y = 49, each correct to the nearest whole number. Work out the upper bound of x - y.
- 3Proof3 marks
Prove that the sum of 7 consecutive integers is always a multiple of 7. State the simplified sum you would use.
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 32. Work out the positive value of x when y = 512.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 6 cm by 4 cm by 13 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
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