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Mac PC Total Greek No 293 155 448 Yes 168 25 193 Total 461 180 641 What proportion of Greek students own a Mac? This
Mac | PC | Total | ||
Greek | No | 293 | 155 | 448 |
Yes | 168 | 25 | 193 | |
Total | 461 | 180 | 641 |
What proportion of Greek students own a Mac? This is called a conditional probability because we are calculating the probability of a student owning a Mac conditional upon knowing the student is Greek. The appropriate notation for this probability is P(M|G) and is read "the probability of selecting a student that owns a Mac given the selected student is in a Greek organization."
Find this probability by restricting your attention to only the row for Greek students and determining what proportion own a Mac.
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