A study of the effectiveness of a flu vaccine was conducted with a sample of 503 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 injectionsTotalFlu951933No flu14860262470Total15765281503A person is selected at random from the sample. Find the specified probability that the person did not get the flu. Round your anser to one decimal place.

A. 81.4%
B. 89.4%
C. 85.4%
D. 77.4%
E. 93.4%


Answer: E

Mathematics

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