These graphs illustrate the dynamic shape and spread changes of the
respondents' age, the respondents'age when their first child was born,
the respondent's number of siblings, and the repsondent's number of
children over the years 1998-2012.
Please note the sample aging over the given time period and the
increase in the increase in the age at which the respondent's first
child was born.
Also note the respondents with two children during this time period
surpassing the repondents with no children as the most frequent
number of children. The respondent's number of siblings ranges up to
30, which can be explained by the existence of large, blended
families.
These plots illustrate the changes in respondents' age, respondents'
age when their first child was born, repsondent's number of siblings,
and respondents' number of children in relation to one another over
the years 1998-2012.
Please draw your attention to the scatterplot of Respondent's Age vs.
Respondent's Number of Children to see the dynamic change in density
of the number of children throughout the years and at each age.
This collection of plots illustrate changes over time for several
grouping variables, including, the respondent's highest level of
education, marital status, income bracket, political party
identification, level of happiness, overall health, and life
satisfaction over the yeras 1998-2012.
Please draw your attention to the plot change over time for the
repsondents' age when their first child was born grouped by their
higest level of education achieved. This plot illustrates the increase
in respondents'age when their first child was born as their education
level increases.
Also note that the plot of respondents' age grouped by their marital
status depicts very distinct patterns of age changes based on
marital status,with most old people widowed, most young people
unmarried, and divorce occuring several years after most people are
married.