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Number of Vehicles Involved 1 2 3 Totals Did alcohol play a role? Yes 75 150 50 275 No 25 125 75 225 Totals 100

Number of Vehicles Involved

1

2

3

Totals

Did alcohol play a role?

Yes

75

150

50

275

No

25

125

75

225

Totals

100

275

125

500

What proportion of accidents involved more than one vehicle?

What proportion of accidents involved alcohol and a single vehicle?

What proportion of accidents involved alcohol or a single vehicle?

Given alcohol was involved, what proportion of accidents involved a single vehicle?

Given that multiple vehicles were involved, what proportion of accidents involved alcohol?

Given that 3 vehicles were involved, what proportion of accidents involved alcohol?

Given that alcohol was not involved, what proportion of the accidents were single vehicle?

Given that alcohol was not involved, what proportion of the accidents were multiple vehicle?

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