A College Sent a Survey to a Sample of Juniors $\frac { 307 } { 620 }$

A college sent a survey to a sample of juniors.Of the 620 students surveyed,307 live on campus,of whom 139 have a GPA of 2.5 or greater.The other 313 juniors live off-campus,of whom 153 have a GPA of 2.5 or greater.What is the probability that a survey participant chosen at random has a GPA less than 2.5?

A) $\frac { 307 } { 620 }$
B) $\frac { 139 } { 620 }$
C) $\frac { 82 } { 155 }$
D) $\frac { 139 } { 292 }$
E) $\frac { 139 } { 307 }$

Correct Answer:

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