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#### veronica1999

##### Member

- Jun 4, 2012

- 63

I set up an equation but I am having trouble with the calculation.

50C0 X (2/3)^0 X (1/3)^50 + 50C2 X (2/3)^2 X (1/3)^48 +............ 50C50 (2/3)^50X(1/3)^0

I tried splitting it up thinking of the sigma notation.

(2/3)^0 + (2/3)^2 .....................+ (2/3)^50 = { 1- (4/9)^25} / (1- 4/9)

(1/3)^0 ......................... + (1/3)^50 = { 1- (1/9)^25}/ (1-1/9)

It doesn't seem to work...