we first use a K - means clustering method
to group the 50 states into five clusters according to their population , area and population density .
To ensure a fair comparison , we first use a K - means clustering method to group the 50 states into five clusters according to their population , area and population density .
To ensure a fair comparison , we first use a K - means clustering method to group the 50 states into five clusters according to their population , area and population density .