A researcher wants to get information from a focus group. How many focus group of 8 people can be selected?
If a focus group of 8 people is selected, what is the probability that all member of the group support living together before marriage?
We should know how many people are involved in this research. Let's call it n, the answer will be nC8
Then if p is the proba that a member support living together before marriage the answer is p^8
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here is the table
I made the first one and it was 20c8= 125970
but I couldn't do the next
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