Question

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A sample of 300 adults is selected. The contingency table below

shows their registration status and their preferred source of information on current events.

1. If an adult is selected at random, what is the probability that he/she prefers to get his/her current information from the radio? (2 pt)

2. If an adult is selected at random, what is the probability that he/she is a registered voter who does not prefer to get his/her current information from the newspapers? (2 pts)

3. If an adult is selected at random, what is the probability that he/she is not a registered voter or prefers to get his/her current information from radio? (2 pt)

4. If a randomly selected adult is not a registered voter, what is the probability that he/she prefers to get his/her current information from the internet? (2 pts)

5. What is the probability that an adult who prefers to get his/her current information from the radio will be a registered voter? (2 pts)

6. Is the preferred source of current information independent of the voting registration status? (4 pts)

#### Top Answer

1) P(RADIO) = 0.3 2) P(registered voter AND newpaper NOT) = 0.42 3) P(not registered user OR radio) = 0.63 4) P(internet... View the full answer