Components

In the box are 8 white, 4 blue and 2 red components.
What is the probability that we pull one white, one blue and one red component without returning?


Result

p =  0.029

Solution:

p=88+4+2⋅48+4+2−1⋅28+4+2−2=0.029p = \dfrac{ 8}{ 8+4+2} \cdot \dfrac{ 4}{ 8+4+2-1} \cdot \dfrac{ 2}{ 8+4+2-2} = 0.029

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