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Table 1 Posterior Means and Standard Deviations for the Speeds of the Case Vehicles, and the Measured Speeds for the Control Vehicles, for 10 Road Accident Research Unit Run-off Road Crashes. All Speeds are in Miles per Hour.

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Crash no. Case speeds Control speeds
Mean Standard deviation 1 2 3 4
1 43.4 4.1 34 35 38 38
2 41.5 3.9 27 30 34 38
3 48.3 4.3 30 34 35 39
4 53.2 3.3 32 34 37 42
5 54.8 4.5 37 43 38 30
6 86.9 9.0 37 37 38 38
7 41.5 2.4 33 34 38 43
8 38.7 2.3 31 40 40 42
9 59.2 3.4 39 39 42 43
10 62.5 3.2 34 38 39 43
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