What is the attack rate (case-fatality rate) from influenza during the 2016 season in the young age group at Minas Tirith? Use the following table to answer the question. Number of Residents,Diagnosed Cases,and Deaths From Influenza by Age Age group No. of residents during 2016 season No. of diagnosed cases from influenza during 2016 season No. of deaths from influenza during 2016 season Young 20 , 000 3 , 000 300 Old 10 , 000 1 , 000 500 \begin{array} { | l | l | l | l | } \hline ext { Age group } & \begin{array} { l } ext { No. of residents } \ ext { during } 2016 ext { season }\end{array} & \begin{array} { l } ext { No. of diagnosed } \ ext { cases from influenza } \ ext { during } 2016 ext { season }\end{array} & \begin{array} { l } ext { No. of deaths from } \ ext { influenza during } 2016 \ ext { season }\end{array} \\hline ext { Young } & 20,000 & 3,000 & 300 \\hline ext { Old } & 10,000 & 1,000 & 500 \\hline\end{array} Age group Young Old No. of residents during 2016 season 20 , 000 10 , 000 No. of diagnosed cases from influenza during 2016 season 3 , 000 1 , 000 No. of deaths from influenza during 2016 season 300 500 A) 15%B) 5%C) 1.5%D) 10%E) 50%

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What is the attack rate (case-fatality rate)  from influenza during the 2016 season in the young age group at Minas Tirith? Use the following table to answer the question. Number of Residents,Diagnosed Cases,and Deaths From Influenza by Age  Age group   No. of residents   during  2016  season   No. of diagnosed   cases from influenza   during  2016  season   No. of deaths from   influenza during  2016  season   Young  20 , 000 3 , 000 300  Old  10 , 000 1 , 000 500 \begin{array} { | l | l | l | l | } \hline 	ext { Age group }  &  \begin{array} { l } 	ext { No. of residents } \	ext { during } 2016 	ext { season }\end{array}  &  \begin{array} { l } 	ext { No. of diagnosed } \	ext { cases from influenza } \	ext { during } 2016 	ext { season }\end{array}  &  \begin{array} { l } 	ext { No. of deaths from } \	ext { influenza during } 2016 \	ext { season }\end{array} \\hline 	ext { Young }  &  20,000  &  3,000  &  300 \\hline 	ext { Old }  &  10,000  &  1,000  &  500 \\hline\end{array}  Age group   Young   Old  ​  No. of residents   during  2016  season  ​ 20 , 000 10 , 000 ​  No. of diagnosed   cases from influenza   during  2016  season  ​ 3 , 000 1 , 000 ​  No. of deaths from   influenza during  2016  season  ​ 300 500 ​ ​ A)  15%B)  5%C)  1.5%D)  10%E)  50%

Abigail Bristow · Accepted Answer

Final Answer : D, Explanation :  The attack rate (case-fatality rate) is calculated by dividing the number of deaths by the number of diagnosed cases. For the young age group, this is 300 deaths out of 3,000 diagnosed cases, which equals 10%.

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