Addition Law of probability for mutually exclusive event is equal ________?

Sample proportion P is ________ estimator?

Let X1,X2,...Xn be a random sample from the density f(x;(θ), where θ may be vector. If the conditional distribution of X1,X2,...Xn given S=s does not depend on θ for any value of s of S, then statistic is called?

In x = 2 ________ 6y the value of y are increasing by one unit then values of x are?

If the conditional distribution of X1,X2,.....Xn given S=s, does not depends on θ, for any value of S=s the statistics S=s(X1,X2,.....Xn) is called________?

Which of the following statement is not true?