Solution
= Solution
Without censoring, $Y_i(t)=\mathbf1_{T_i\ge t}$, so \b[its unconditional expectation is survival]:
$$
\boxed{\mathbb E Y_i(t)=F_i(t).}
$$
The distinction between $>$ and $\ge$ is immaterial for a continuous event time.
= Solution
Without censoring, $Y_i(t)=\mathbf1_{T_i\ge t}$, so \b[its unconditional expectation is survival]:
$$
\boxed{\mathbb E Y_i(t)=F_i(t).}
$$
The distinction between $>$ and $\ge$ is immaterial for a continuous event time.