In a poll respondents were asked whether they had ever been

In a poll, respondents were asked whether they had ever been in a car accident. 138 respondents indicated that they had been in a car accident and 494 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident? Round to the nearest thousandth, if necessary.

Solution

P(respondent from accident) = 138/(138+494) = 0.21835443037974683544

Probability is about 0.218