Probability matrix

For each of the following transition matrices. determine whether the Markov chain with that transition matrix is regular: (1) is the Markov chain whose transition matrix whose transition matrix Is 0 1 0 0 0.2 0.8 1 0 [J regular? (Yes or No) 5 (2) is the Markovr chain whose transition matrix-whose transition matrix is 0 1 0 [L1 11.4 0.5 0 1 0 regular? (Yes or No) - E (3) Is the Markov chain whose transition matrix whose transition matrix is 1 O 0 0.8 0 0.2 0.8 0.2 0 regular? (Yes or No) (4) is the Markov chain whose transition matrix vmose transition matrix is 0 1 0 08 0 02 O 1 0 regular? (Yes or No) \fWhen discussing statistics and statistical analysis the term "skewed data" or "skewness" is sometimes used? What does this mean? Provide an example of data that you have seen that is skewed? In terms of statistical analysis what effect does skew have when looking at a statistical distribution