Higher Plus
15th June 1958
- 1Conditional Probability3 marks
A bag holds 3 red, 6 blue and 2 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?
- 2Histograms3 marks
On a histogram the bar for 30 < x <= 35 has a frequency density of 1.5. How many values are in that class?
- 3Bounds3 marks
x = 135 and y = 8, each correct to the nearest whole number. Work out the upper bound of x - y.
- 4Transforming Graphs y=f(x)3 marks
The point (5, 5) lies on y = f(x). Write down its image on y = f(x + 3).
- 5Velocity Time Graphs2 marks
A train slows steadily from 26 m/s to rest in 8 seconds. Work out its deceleration.
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