Concept explainers
(a)
To calculate: The annual income for a woman with 18 years of education by using degree 2 polynomial and then calculate by how much the median annual income underestimate or overestimate if the bar graph shown below represents the median annual income for Americans by level of education in 2009 and the polynomials models that described the median annual income for men M, for women W who have completed x years of education are,
And the bar graph is,
(b)
To calculate: The mathematical model for
(c)
To calculate: The median annual income between men and women with 16 years of education by using part (b) mathematical model
(d)
To calculate: The actual difference in the median annual income between men and women with 16 years of education by using the graph and then calculate by how much the median annual income underestimate or overestimate by the part (c) result of
That is,
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