Daily Practice - Higher Plus
6th November 1991
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a + b and vector RS = 5a + 5b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 55 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 5-wide bar and a 20-wide bar have the same frequency density of 2. How many more values are in the wider class?
- 4Bounds3 marks
A rectangle is 14 cm by 9 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 5Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 - 10x + 15.
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