Data Analysis A study of the effectiveness of a flu vaccine was conducted with a sample
Chapter 9, Problem 33(choose chapter or problem)
Data Analysis A study of the effectiveness of a flu vaccine was conducted with a sample of 500 people. Some participants in the study were given no vaccine, some were given one injection, and some were given two injections. The results of the study are listed in the table. A person is selected at random from the sample. Find the specified probability. (a) The person had two injections. (b) The person did not get the flu. (c) The person got the flu and had one injection.
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