Given the contingency table shown here, if a randomly chosen student attends school in an inner-city location, what is the probability that it is a public school? $$\text { What type of school do you attend? }$$
$\begin{array}{|c|c|c|c|c|}
\hline \text { Location } &\text { Public }(P) & \text { Religious }(R) & \text { Other Private }(O) & \text { Row Total } \
\hline \text { Inner City (I) }&35 & 15 & 20&70 \
\hline \text { Sububan (S) }&45 & 10 & 25&80 \
\hline \text { Rural (R) }&25 & 5 & 5&35 \
\hline \text { Col Total }& 105 & 30 & 50&185 \
\hline
\end{array}$
A).189
B).333
C).500
D).567

Question

Given the contingency table shown here, if a randomly chosen student attends school in an inner-city location, what is the probability that it is a public school? $$\text { What type of school do you attend? }$$
$\begin{array}{|c|c|c|c|c|}
\hline \text { Location } &\text { Public }(P) & \text { Religious }(R) & \text { Other Private }(O) & \text { Row Total } \
\hline \text { Inner City  (I) }&35 & 15 & 20&70 \
\hline \text { Sububan (S) }&45 & 10 & 25&80 \
\hline \text { Rural (R) }&25 & 5 & 5&35 \
\hline \text { Col Total }& 105 & 30 & 50&185 \
\hline
\end{array}$
A).189
B).333
C).500
D).567

Quizplus · Accepted Answer

The probability of a student attending a public school given that they attend school in the inner city is found by taking the number of inner city students who attend public schools (35) and dividing by the total number of inner city students (70):

$P(	ext{Public at Inner City}) = \frac{35}{70} = 0.5$

So the answer is C) 0.5.

Given the Contingency Table Shown Here, If a Randomly Chosen What type of school do you attend? \text { What type of school do you attend? } What type of school do you attend?

Given the Contingency Table Shown Here, If a Randomly Chosen $\text { What type of school do you attend? }$