- Julia selects 3 letters at random, one at a time without replacement, from the word
\section*{VARIANCE}
The discrete random variable \(X\) represents the number of times she selects a letter A.
- Find the complete probability distribution of \(X\).
Yuki selects 10 letters at random, one at a time with replacement, from the word
\section*{DEVIATION}
- Find the probability that he selects the letter E at least 4 times.