early in your assignment, when you relate which data set you analyzed, please include the mean of the following variables. if you are using the Afrobarometer data set, report the mean if Q1 (age). if you are using the HS Long Survey Dataset, report the mean of XISES. a description of what each of the variables measure. A description of the unit if analysis. A description and explanation if the levels of measurement for each variable (nominal, ordinal, interval, ratio). Explain how might conceive these variables to be used to answer a social change question . What might be the implications for social change