QUESTION 25 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved Did alcohol play a role? I 2 3 Totals Yes 50 100 20 170 No 25 175 30 230 Totals 75 275 400 Referring to Table 4-1, what proportion of accidents involved more than one vehicle? 75/400 or 18.75% 275/400 or 68.75% 325/400 or 81.25% 50/400 or 12.5%Solve the problem. The overnight shipping business has skyrocketed in the last ten years. The single greatest predictor of a company's success is customer service. A study was conducted to determine the customer satisfaction levels for one overnight shipping business, In addition to the customer's satisfaction level, the customers were asked how often they used overnight shipping. The results are shown below in the following table: Satisfaction level Frequency of Use High Medium Low TOTAL 5 per month 70 25 100 TOTAL 460 220 20 700 A customer is chosen at random. Given that the customer uses the company two to five times per month, what is the probability that the customer expressed low satisfaction with the company? 0 1 140 O 43 140 O 1 40 O MILESTION ?2