In a national survey college students were asked, How often do you wear a seat belt...

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In a national survey college students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. (a) Construct a probability model for seat-belt use by a passenger. (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? (a) Complete the table below. Response Never Rarely Probability (.... Sometimes (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) Most of the time Always (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? A. No, because the probability of an unusual event is 0. OB. Yes, because 0.01 <P(never) <0.10. OC. No, because there were 133 people in the survey who said they never wear their seat belt D. Yes, because P(never) <0.05. Response Never Rarely Sometimes Most of the time Always Frequency 133 318 576 1250 2712 In a national survey college students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. (a) Construct a probability model for seat-belt use by a passenger. (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? (a) Complete the table below. Response Never Rarely Probability (.... Sometimes (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) Most of the time Always (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? A. No, because the probability of an unusual event is 0. OB. Yes, because 0.01 <P(never) <0.10. OC. No, because there were 133 people in the survey who said they never wear their seat belt D. Yes, because P(never) <0.05. Response Never Rarely Sometimes Most of the time Always Frequency 133 318 576 1250 2712

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