In a national survey college shudents were asked, How often do you wear a seat b

Question

In a national survey college shudents were asked, How often do you wear a seat belt when riding in a car driven by someone else? The response frequencies appeat in the table to the right. (a) Construct a probability model for seat-bet use by a passenger (b) Would you consider it unusual to find a college student who never wears a seal belt when riding in a car driven by someone else? Rarely Most of the ime 1350 (a) Complete the table blow Round to the nearest thousandth as needed) (Round to the nearest thousandth as needed) (Round to the nearest thousandh as needed ) (Round to the nearest thousandth as needed ) Hound to the nearest thousandth as needed Most of the time Would you consider n.nusuai tofrxd a colege student who never wears a seat belt when ridinge, a car driven by someone ei.e? A. Yes becane Pinever) e0 05 on. No ause two were 143 people inthe trvey said they never westek be

Explanation / Answer

Solution:-

a)

The sum of total :-  143 + 318 + 596 + 1390 + 2279 = 4726

b) option A. Yes, because P(never) < 0.05

Response Frequency probability Never 143 143/4726 = 0.0302 rarely 318 318/4726 = 0.0673 some times 596 596/4726 = 0.1261 most of the time 1390 1396/4726 = 0.2954 Always 2279 2279/4726 = 0.4822

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