5 men and 7 women are going to be assigned seats in the theather. if the 12 tickets are given out at ramdom, find the prob that 5 women are given the first 5 seats next to the center aisle
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OpenStudy (anonymous):
You need to do part over total so .....
Part= 5 women
Total= 12 seats
OpenStudy (anonymous):
so 5 over 12?
OpenStudy (anonymous):
hello?
OpenStudy (dumbcow):
use combinations
7C5/12C5
OpenStudy (anonymous):
7*6*5*4*3 which is 2520 then 12*11*10*9*8 which is 95040
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OpenStudy (anonymous):
so now How would I simplify the problem?
OpenStudy (dumbcow):
good
use calculator to divide
2520/95040 = .0265
or you could reduce the fraction
OpenStudy (anonymous):
Ok so to reduce the fraction U would do 2520 devide by 2
OpenStudy (dumbcow):
cross things out on top and bottom
7*6*5*4*3
_____________
12*11*10*9*8
3/9 reduces to 1/3
4/8 reduces to 1/2
5/10 reduces to 1/2
6/12 reduces to 1/2
leaving...
7
____________
2*11*2*2*3
OpenStudy (anonymous):
7/264?
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