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Comment on Determining Independence
What is the answer for the 2
P(both selections are women)
P(both selections are women) = P(1st selection is a woman AND 2nd selection is a woman)
= (4/7)(3/6)
= 12/42
= 2/7
what is the answer for both
P(1st toss is heads AND 2nd
P(1st toss is heads AND 2nd toss is heads)
= P(1st toss is heads) x P(2nd toss is heads)
= 1/2 x 1/2
= 1/4
In the two women selection
what's wrong with this method
prob = 3c2/7c2
order doesn't matter so why can't we use this method
Your solution is great,
Your solution is great, EXCEPT for the numerator (it's not 3C2).
P(both selections are women) = (number of ways to select 2 women from the FOUR women)/(number of ways to select 2 people from the 7 people)
= (4C2)/(7C2)
= 6/21
= 2/7
oh my bad Thanks a lot :)
Thanks a lot :)
in the women case, even a
That's true!
That's true!
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