Consider a pattern recognition experiment involving three distinct features, denoted as $C_1,C_2,$ and $C_3,$ representing

characteristics in an object. These features can take values from the set $\{2,5,4\},$ each object having three distinct

features. In this recognition task, you are randomly selecting and observing the three features in different objects.

The outcomes are sequences such as $\{452\},$ where the first, second, and third features are $C_1=4,C_2=5,$ and

$C_3=2,$ respectively.

Event $E_i$ denotes the event the $i_{th}$ feature, $C_i$ is an even value. Event $O_i$ denotes the event that the $i_{th}$ feature $C_i$

is an odd value.