SOLUTION: Congressional Terms. Below is given the summary from the 112th Congress of Senators whose terms end in the indicated year. Party 2013 2015 2017 Democrat 21 20 1 Republ

Question 1050810: Congressional Terms. Below is given the summary from the 112th Congress of Senators whose terms end in the indicated year.
Party 2013 2015 2017
Democrat 21 20 1
Republican 8 15 13
If a Senator is selected at random, find this probability:
P(Democrat and term expires in 2015)
Have I approached this problem correctly?
P(Democrat) = 42/78 = 7/13
P(Term Expires in 2015) = 20/35 = 4/7
Independent events so P(A n B) = P(A) x P(B) = 7/13 x 4/7 = 4/13

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi  

Party	       2013    2015    2017    Tot

Democrat	21		1       42

Republican	8	15	13      36

Total           29      35      14      78

P(Democrat and term expires in 2015) = 20/78 

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