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PERMUTATION - STATISTICS IMMEDIATE HELP NEEDED?
Two families,each consisting of the father, the mother and a daughter, sit in a row. In how many ways can they be seated such that each arrangement is symmetrical with respect to
(a) the two fathers, the two mothers and the two daughters (show me the arrangements)
(b) the two men, the two women, and the girls???
PLEASE HELP
THANKS FRIENDS.
1 Answer
- 7 years ago
FMDDMF, FDMMDF, DMFFMD, MDFFDM, DFMMFD, MFDDFM
b is the same as a as far as I can tell just using men, women girls in place of father, mother daughter don't see how they can be different
