What does arc BC equal?
1 answer:
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Use hypergeometric distribution where there are two categories of identical objects/persons, each with a know size.
d=number of Democrats selected
D=total number of Democrats = 6
r=number of Republicans
R=total number of Republicans =5
Then
where
= combination of r items selected from n,
D+R=total number of members = 6+5 =11
d+r=number of members selected = 7
Answer: the probability of selecting 4 Democrats and 3 Republicans is 5/11
d=number of Democrats selected
D=total number of Democrats = 6
r=number of Republicans
R=total number of Republicans =5
Then
where
D+R=total number of members = 6+5 =11
d+r=number of members selected = 7
Answer: the probability of selecting 4 Democrats and 3 Republicans is 5/11