The State of Vermont is divided into 10
Health Planning Districts, which correspond roughly to counties. The following
data for 1980 represent the percentage of births of babies under 2500 grams
(Y), the fertility rate for females younger than 18 or older than 34 years of
age ( ), and the percentage of births to unmarried mothers ( ) for each
district.
a. Make a scatter diagram of Y and .
b. Draw on your scatter diagram (by eye)
the line that appears to best fit the data
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