Steve and mary are married and then get a divorce. steve then marries rachel, and they get a divorce, too. steve remarries mary and lives with her until she dies. after mary's death, steve marries beth and lives with her until his death. these relationships of steve's life are an example ofa. polygamy. b.polygyny. c.serial monogamy. d.polyandry.

What is meant by a symmetrical unimodal distribution? a. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. b. a distribution is a pattern of frequencies for the various values of a variable collected in a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. c. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is a uniform frequency, meaning the frequency of every value is same, and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other.

Ineed because i cannot find the answers anywhere

What was different about warfare in the early 1800s and early 1900s?