While 40 percent of Americans in the top quartile of income lacked a sick leave policy at work, 54 percent of Americans in the second quartile, 63 percent in the third quartile and 76 percent of workers in the bottom quartile lacked sick leave.
12.
While 34 percent of working parents in the top quartile say they cannot take days off for ill sons and daughters, 48 percent in the second quartile, 53 percent in the third quartile and 71 percent in the bottom quartile said they cannot take days off.
13.
The midhinge is complemented by the "'H-spread "', or "'interquartile range "', which is the difference of the third and first quartiles and which is a measure of statistical dispersion, in sense that if one knows the midhinge and the interquartile range, one can find the first and third quartiles.
14.
Thus, if " X " has a standard Cauchy distribution and ? is any real number and ? > 0, then " Y " = ? + ? " X " has a Cauchy distribution whose median is ? and whose first and third quartiles are respectively ? & minus; ? and ? + ?.
15.
While 41 percent of working parents in the top quartile of income have two weeks or less of sick leave and vacation leave, 57 percent of parents in the second quartile, 68 percent in the third quartile, and an astounding 84 percent in the bottom quartile had two weeks or less of sick leave and vacation leave.
