Higher Plus
10th December 1955
- 1Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 88 wins. How many games did they play?
- 2Histograms3 marks
A histogram has four 10-wide classes from 0, with frequency densities 3, 2, 1, 0.5. Which class contains the median?
- 3Bounds3 marks
A car covers 860 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 (-3, 6) lies on y = f(x). Write down its image on y = f(x - 6).
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 49, y = 14. Work out y when x = 9.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1955, including the monthly compilation PDF.