To get the probability , add all of the marbles together to get the 100%. There are 12 marbles total. Since there are four blue marbles, there is a 4/12 chance he will pick a blue marble. Simplify this to 2/6, and then 1/3 which in percentage is approximately 33.33%
![(m^{6})^{ \frac{-2}{3} } \\ (\frac{1}{m^{6} })^{\frac{2}{3} } \\ \frac{ \sqrt[3]{1^{2} } }{ \sqrt[3]{m^{6} }^{2} } \\ \frac{ \sqrt[3]{1} }{m^{2*2} } \\ \frac{1}{m^{4} }](https://tex.z-dn.net/?f=%28m%5E%7B6%7D%29%5E%7B%20%5Cfrac%7B-2%7D%7B3%7D%20%7D%20%5C%5C%20%20%28%5Cfrac%7B1%7D%7Bm%5E%7B6%7D%20%7D%29%5E%7B%5Cfrac%7B2%7D%7B3%7D%20%7D%20%20%5C%5C%20%20%5Cfrac%7B%20%5Csqrt%5B3%5D%7B1%5E%7B2%7D%20%7D%20%7D%7B%20%5Csqrt%5B3%5D%7Bm%5E%7B6%7D%20%7D%5E%7B2%7D%20%20%7D%20%20%5C%5C%20%20%20%5Cfrac%7B%20%5Csqrt%5B3%5D%7B1%7D%20%7D%7Bm%5E%7B2%2A2%7D%20%7D%20%20%20%5C%5C%20%20%5Cfrac%7B1%7D%7Bm%5E%7B4%7D%20%7D%20)
