​A Study of the Effectiveness of a Flu Vaccine Was

question 28

Multiple Choice

​A study of the effectiveness of a flu vaccine was conducted with a sample of 464 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. ​
$$\begin{array} { | l | l | l | l | l | } \hline & \begin{array} { l } \text { No } \\\text { vaccine }\end{array} & \begin{array} { l } \text { One } \\\text { injection }\end{array} & \begin{array} { l } \text { Two } \\\text { njections }\end{array} & \text { Total } \\\hline \text { Flu } & 8 & 5 & 12 & 25 \\\hline \text { No flu } & 135 & 41 & 263 & 439 \\\hline \text { Total } & 143 & 46 & 275 & 464 \\\hline\end{array}$$
A person is selected at random from the sample.Find the probability that the person had two injections.Round your anser to one decimal place.

• A)​275.0%
• B)​63.3%
• C)​71.3%
• D)​67.3%
• E)​59.3%

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Definitions:

Police Escort

A service provided by the police for ensuring the safety and security of individuals or groups during transportation or when moving through potentially hazardous areas.

Collaborative Partnership Model

A cooperative approach to healthcare that involves shared decision-making among patients, families, and providers.

Mutual Respect

A reciprocal understanding and esteem between individuals or groups, recognizing and valuing each other's rights and feelings.

Conflict Management

The practice of identifying and handling conflicts in a sensible, fair, and efficient manner.