The National Center for Health Statistics compiles data on injuries and publishes the information in Vital and Health Statistics. A contingency table for injuries in the United States, by circumstance and gender, is as follows. Frequencies are in millions.

a. Find P(C1).
b. Find P(C1 | S2).
c. Are events C1 and S2 independent? Explain your answer.
d. Is the event that an injured person is male independent of the event that an injured person was hurt at home? Explain your answer.

Transcribed Image Text:

Circumstance WorkHome Other Total Male 8.0 9.8 17.8 35.6 Female1.3 11.6 12.9 25.8 Total 9.3 214 614