2 5 6 5- (15 Points) Mothers Against Drunk Driving (MADD) caused by drunk driver

Question

2 5 6 5- (15 Points) Mothers Against Drunk Driving (MADD) caused by drunk drivers. A study was recently done that emphasized the problem we all face w is a very visible group whose main focus is to educate the public about the harm ts that occurred on a Saturday night were analyzed. Two items noted were the number of v with drinking and Oo and (1, 2 or 3 vehicles involved) and whether alcohol played a role in the accident. It was det alcohol played a role in 200 accidents. Out of these 200 accidents, 1 vehicle was involved in 60 accider were involved in 110 accidents. The data s driving. Five ehicles inwolved that out of 500 accidents 2 vehicles that in 100 accidents 1 vehicle was involved and n 325 accidents 2 vehicles were involved a) Prepare a contingency table b) What percent of accidents involved more than 1 vehicle? c) What percent of accidents involved alcohol and 2 vehicles? d) What percent of accidents did not involve alcohol? 10

Explanation / Answer

The contingency table and answers are as shown below: -

a)

b)

400/500=80%

c)

110/500=22%

d)

300/500=60%

1 2 3 Total Alcohol 60 110 30 200 No alcohol 40 215 45 300 Total 100 325 75 500

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