Question 89406
In England, sons of members of the Labor Party vote Labor with probability 0.5, vote Conservative with probability 0.4, and vote Liberal with probability 0.1.  The probabilities for sons of Conservative Party members are 0.7 Conservative, 0.2 Labor, and 0.1 Liberal.  For the sons of Liberals the probabilities are 0.2 Conservative, 0.4 Labor, and 0.4 Liberal.  Given these statistics, what is the probability that the grandson of a Liberal will vote Labor?
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