5.33 Revisiting seat belts and auto accidents The following table is from Exercise 5.23 classifying auto accidents by survival status 1S = survived, D = died2 and seat belt status of the individual involved in the accident.

a. Estimate the probability that the individual died (D) in the auto accident.

b. Estimate the probability that the individual died, given that the person (i) wore and (ii) did not wear a seat belt. Interpret results.

c. Are the events of dying and wearing a seat belt independent?
Justify your answer.

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Outcome Belt S D Total Yes 412,368 510 412,878 No 162,527 1,601 164.128 Total 574,895 2,111 577,006