Eight random people were interviewed about their living arrangements and one of the question s asked how many people (total) were living in the same household the answers were

1,1,2,2,2,2,2,3

a) compute the mean median and mode if the there is one

b) the person who reported 3 realized they had made a mistake because they had not included themselves after changing their answers to 4 will the standard deviations increase, decreased, or stay the same? Explain your reasoning