Mathematics, 15.09.2021 14:00 DAVISJOS00123

A researcher wanted to check whether marriage causes people to become more responsible. Specifically, he was interested to know if marriage causes people to become more careful drivers. He went over the files of all car accidents that occurred in the past
3
33 years in his state, and he calculated how many accidents out of the total number of accidents were caused by married people. Then, he compared his results with the actual percentage of married people in his state.
What type of statistical study did the researcher use?

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A researcher wanted to check whether marriage causes people to become more responsible. Specifically...