The data in the table below summarize result from 146 pedestrian death that were

Question

The data in the table below summarize result from 146 pedestrian death that were caused by accidents. If two different death as randomly selected without replacement, find the probability that they both involved intoxicated driven. Is such an event unlikely? The probability is squareroot (Round to three decimal places as needed.) is such an event unlikely? SmallCircle No, because its probability is greater than 0.05 SmallCircle Yes, because its probability is less than 0.05 SmallCircle No. because its probability is toss than 0.05 SmallCircle Yes, because its probability is grater than 0 05

Explanation / Answer

Following table shows the row total and column total:

There are total 146 deaths and out of these 23 involves intoxicated drivers. So probability of selecting a death involving intoxicated driver is 23/146. After selecting this there are 145 deaths and out of these 22 involves intoxicated drivers so probabaility of selecting second death involving intoxicated driver is 22/145. So required probability is

(23/146) * (22/145) = 0.024

hence, option B is correct.

Pedestrian Intoxicated? Yes No Total Driver Yes 7 16 23 Intoxicated? No 74 49 123 Total 81 65 146

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