Posted by Basima on .
A reporter covering a naturalization ceremony wants to randomly select new citizens to interview. Out of the 200 new American citizens, 7 of them are from Ecuador, and 10 of them are from Kenya. What is the probability that the reporter will randomly select a person from Ecuador first and then a person from Kenya to interview?
Probability, not "9th grade" -
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9th grade math -
7/200 for the Ecuadorian, 10/199 for the Kenyan (one non-Kenyan person is already gone).
The probability of both (or all) events is found by multiplying the probabilities of the individual events.
I hope this helps.
9th grade -
The answer is 7/3,980. By the way, this is 6th grade, not 9th!