1 1 vote Given $n$ independent Bernoulli random variables, taking value $1$ with probability $p$ and $0$ with probability $1-p$. Then, which of the following is the value of $E\left[\left(z_{1}+\right.\right.$ $\left.\left.\ldots z_{n}\right)^{2}\right] ?$ $0$ $n p+n(n-1) p^{2}$ $n^{3} p^{2}$ $n^{2} p^{2}+n p$ None of the above Probability and Statistics tifrece2020 probability-and-statistics random-variable + – admin 477 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.