Random sample of registered iowa voters

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The following data represent political party by age from a random sample of registered Iowa voters.

                    17-29  30-44  45-64   65+  Total

Republican      224     340     1075   561  2200
Democrat        184     384      773   459  1800
Total               408     724     1848 1020  4000

a. Are the events "Republican" and "30-44" independent? Justify your answer.

b. Are the events "Democrat" and "65+" independent? Justify your answer.

c. Are the events "17-29" and "45-64" mutually exclusive? Justify your answer.

d. Are the events "Republican" and "45-64" mutually exclusive? Justify your answer.

Reference no: EM1385752

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