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The Table Below Shows the Soft Drinks Preferences of People

question 44

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The table below shows the soft drinks preferences of people in three age groups.  Cola  Root Beer  Lemon-lime  Under 21 years of age 402520 Between 21 and 40 352030 Over 40 years of age 203035\begin{array}{l|ccc} & \text { Cola } & \text { Root Beer } & \text { Lemon-lime } \\\hline \text { Under 21 years of age } & 40 & 25 & 20 \\\text { Between 21 and 40 } & 35 & 20 & 30 \\\text { Over 40 years of age } & 20 & 30 & 35\end{array}

If one of the 255 subjects is randomly selected, find the probability that the person drinks root beer given that they are over 40 .


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