③ We to cylindrical coin with $v = \{H; S, T\}$
where $H$ - denotes head; $S$ - denotes
side & $T$ - denotes tail. Assume that
$P(l_{W_1}3) = P(l_{W_2}3) = p$ and $P(l_{W_3}3) = 1-2p$.
Find the estimator of $p$ (i.e. $\hat{p} \approx p$)
a) using moments' based method
b) using most likelihood estimator.
We assume here that: $X: v \to \{-1, 0, 1\}^3$
$X(l_{W_1}3) = -1$; $X(l_{W_2}3) = 0$; $X(l_{W_3}3) = 1$
Both estimator should take into account
n observations of tossing such coin with
$\{x_1, x_2,..., x_n\}$ detected, where $x_i \in \{-1, 0, 1\}^3$.