A psychology lab doing research in dreams has 4 rooms (1,2,3, and 4), each containing 2 beds (A and B). Three pairs of twins are being studied tonight. Each pair of twins will be assigned to one of the four rooms, and then each twin will be assigned a specific bed in the room. How many ways are there to organize the experiment? (i.e. How many ways are there to assign the 6 subjects to rooms and beds if each pair of twins must share the same room?) 24

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A psychology lab doing research in dreams has 4 rooms (1,2,3, and 4),
each containing 2 beds (A and B). Three pairs of twins are being studied
tonight. Each pair of twins will be assigned to one of the four rooms, and
then each twin will be assigned a specific bed in the room. How many
ways are there to organize the experiment? (i.e. How many ways are there to assign
the 6 subjects to rooms and beds if each pair of twins must share the same room?)
24
8
192
48
12
Transcribed Image Text:A psychology lab doing research in dreams has 4 rooms (1,2,3, and 4), each containing 2 beds (A and B). Three pairs of twins are being studied tonight. Each pair of twins will be assigned to one of the four rooms, and then each twin will be assigned a specific bed in the room. How many ways are there to organize the experiment? (i.e. How many ways are there to assign the 6 subjects to rooms and beds if each pair of twins must share the same room?) 24 8 192 48 12
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