What is the variance of the discrete random variable?
variance of the discrete random variable the difference between the values of a random variable and its mathematical expectationVar(X)=∑i=1nxi2⋅pi−(∑i=1nxi⋅pi)2\text{variance of the discrete random variable the difference between}\newline \text{ the values of a random variable and its mathematical expectation}\newline Var(X)=\sum_{i=1}^{n}{x_i^2 \cdot p_i}-\left(\sum_{i=1}^{n}{x_i \cdot p_i} \right)^2variance of the discrete random variable the difference between the values of a random variable and its mathematical expectationVar(X)=∑i=1nxi2⋅pi−(∑i=1nxi⋅pi)2
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!
Comments
Leave a comment