Question: The graph shown below relates the state of health to the socio economic status of families in three counties. Both health and socio-economic status are measured by indices where higher numbers indicate a higher level of the concept underlying the index

a. Comment on the specific values of the two indices in this data set based on what we said about index numbers in class.

b. The following statement accompanies the graph: “Growth in the health index is observed as socio-economic levels increase”. Compare the growths of the three counties shown in the chart.

c. For each of the three counties, write an expression (equation) to reflect the linear relationships between the two indices shown in the graph.

d. For each of the three counties, state what the health index would be for a socio-economic index level of 60. Explain how you arrived at your answers.