SOLUTION: I ned some help with a few of these. I have over 200 now to do. Thank you so much. Must show work and use formula for combinations to solve. For some civil cases, at least 9

Algebra ->  Probability-and-statistics -> SOLUTION: I ned some help with a few of these. I have over 200 now to do. Thank you so much. Must show work and use formula for combinations to solve. For some civil cases, at least 9       Log On


   



Question 34932: I ned some help with a few of these. I have over 200 now to do. Thank you so much.
Must show work and use formula for combinations to solve.
For some civil cases, at least 9 of 12 jurors must agree on a verdict. How many combinations of 9 jurors ar possible froma 12-person jury?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
For some civil cases, at least 9 of 12 jurors must agree on a verdict. How many combinations of 9 jurors ar possible froma 12-person jury?
You are counting "groups" of people. Order does not make a difference
in the group.
You want "number of comginations of 12 objects taken 9 at a time".
12C9= [12!]/[(12-9)!*9!] = [12*11*10]/[1*2*3]
= 220 ways
Cheers,
Stan H.