Daily Practice - Higher Plus
31st October 1993
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 4, y = 4. Work out y when x = 81.
- 2Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = b and vector OB = a. M is the point dividing AB in the ratio 3 : 1. Write vector OM in terms of b and a.
- 3Probability Equation Questions3 marks
The probability of winning a game is 1/8. A player expects 6 wins. How many games did they play?
- 4Histograms3 marks
A histogram has four 10-wide classes from 0, with frequency densities 3, 0.5, 2, 1. Which class contains the median?
- 5Bounds3 marks
x = 71 and y = 36, each correct to the nearest whole number. Work out the upper bound of x - y.
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