A study of the effectiveness of a flu vaccine was conducted with a sample of 497 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.
No vaccineOne injectionTwo injectionsTotalFlu831223No flu14552277474Total15355289497A person is selected at random from the sample. Find the specified probability that the person got the flu and had one injection. Round your anser to one decimal place.
A. 5.6%
B. 2.6%
C. 3.6%
D. 0.6%
E. 6.6%
Answer: D
Mathematics
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