Find out the correct order of succession levels in Xerarch

Xerarch succession.

Find out the correct sequence in ascending order of hierarchy

Find out the correct sequence in ascending order of hierarchy

Find out the correct answer out of the options given against each questions : The variance of 'number of success in a set of 20 Beronullian trials cannot exceed

Find out the correct answer out of the options given against each question: In testing of hypothesis with level of significance alpha , the probability of type-I error is-

Find out the correct answer out of the options given against each questions : In testing of hypothesis, if the level of significance is 1%, the probability of type-I error is

Which of these are common to hydrach succession and xerarch succession ?