Higher Plus
28th June 1975
- 1Probability Equation Questions3 marks
The probability of winning a game is 1/10. A player expects 5 wins. How many games did they play?
- 2Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 0.5, 2, 3, 1. Which class contains the median?
- 3Bounds3 marks
A car covers 430 m (to the nearest 10 m) in 8 s (to the nearest second). Work out the lower bound of its speed, to 2 decimal places.
- 4Transforming Graphs y=f(x)3 marks
The point (1, 1) lies on y = f(x). Write down its image on y = f(x + 4).
- 5Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 5, y = 16. Work out y when x = 4.
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