Question
A sample of 300 adults is selected. The contingency table below shows their registration status and their preferred source of information on current events. Television
A sample of 300 adults is selected. The contingency table below shows their registration status and their preferred source of information on current events.
Television newspaper radio internet
Voting registration statusRegistered 45 30 45 36
Not registered 35 44 45 20
- If an adult is selected at random, what is the probability that he/she prefers to get his/her current information from the internet?
- If an adult is selected at random, what is the probability that he/she is a registered voter and prefers to get his/her current information from the television?
- If an adult is selected at random, what is the probability that he/she is a registered voter or prefers to get his/her current information from radio?
- If a randomly selected adult is a registered voter, what is the probability that he/she prefers to get his/her current information from the newspapers?
- Is the preferred source of current information independent of the voting registration status?
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Elementary Statisitcs
Authors: Barry Monk
2nd edition
1259345297, 978-0077836351, 77836359, 978-1259295911, 1259295915, 978-1259292484, 1259292487, 978-1259345296
