Higher Plus
9th January 1974
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 6a + 3b and vector RS = 24a + 12b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/5. A player expects 8 wins. How many games did they play?
- 3Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2, one 5 units wide with density 3. How many values in total?
- 4Bounds3 marks
A rectangle is 21 cm by 22 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 5Rearranging Harder Formulae3 marks
Make x the subject of 2x + 3 = y(x + 3).
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