*COMMENT Calculate the mean percentage of people in the 4 ethnic groups in each state.*
*COMMENT no the answer is not always 25%.*
COMPUTE ethnmean = (perc_White + perc_Latino + perc_Black + perc_Asian)/4.
*COMMENT Calculate each piece of the std deviation: above mean subtracted from each ethnic
specific percentage; then square this deviation score. (Notice that this is the square of
how much each ethnic percentage differs from the overall percentage for all 4 groups.*
COMPUTE ethn_std_dev1 = (perc_White - ethnmean)**2.
COMPUTE ethn_std_dev2 = (perc_Latino - ethnmean)**2.
COMPUTE ethn_std_dev3 = (perc_Black - ethnmean)**2.
COMPUTE ethn_std_dev4 = (perc_Asian - ethnmean)**2.
*COMMENT Now we take the square root of the mean of these four deviation scores.*
COMPUTE ethn_std_deviation = sqrt(mean
(ethn_std_dev1,ethn_std_dev2,ethn_std_dev3,ethn_std_dev4)).
exe.