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OpenStudy (mackenzie2013):
Candace has 4 trophies to place on a shelf. How many possible arrangements of all 4 trophies are there?
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OpenStudy (mackenzie2013):
4c4? huh? Is that multipy?
rvc (rvc):
wait wait
the first trophy has 4 chocies
the second trophy has 3 chocies
rvc (rvc):
so it would be 4 X 3 X 2 X 1
rvc (rvc):
since after a trophy is placed
one place would be filled
rvc (rvc):
@UsukiDoll :)
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OpenStudy (mackenzie2013):
This is confusing me haha
rvc (rvc):
suppose we have four trophies namely A B C and D
and four places namely 1 2 3 4
now let trophy B occupy place no 3
OpenStudy (usukidoll):
statistics and probability ...
<--- this user is not an expert at this topic
rvc (rvc):
so now we are left with :
Trophy : A C D
Place : 1 2 4
now trophy A can occupy any one the three places from 1 2 4
rvc (rvc):
so first trophy B had 4 choices AND trophy A has 3 choices
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rvc (rvc):
are you getting the explanation?
OpenStudy (mackenzie2013):
Its still confusing the H-E double hockey sticks out of me.
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