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olga_2 [115]
3 years ago
15

The median age for u.s. blacks currently is 30.9 years; for u.s. whites it is 42.3 years. (a) based upon this information, give

two reasons why the black median age could be lower than the white median age. (select all that apply.)
Business
1 answer:
Marrrta [24]3 years ago
7 0

There are quite a few reasons that this difference could be observed. The lower black median age could be connected to the greater number of births in the black minority group than in the whites. Another reason could be the aging of the non-Hispanic white group to a post child-bearing age and consequently the general aging of this subgroup of the population. In general, differences in group medians are due to the distribution of ages and the observed range of the ages in the two dissimilar population groups.

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Answer:

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D2 = decision to build fire station in city 2, (1 denotes yes and 0 denotes no)

D3 = decision to build fire station in city 3, (1 denotes yes and 0 denotes no)

D4 = decision to build fire station in city 4, (1 denotes yes and 0 denotes no)

D5 = decision to build fire station in city 5, (1 denotes yes and 0 denotes no)

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b.

Please look at attachment

C .

The figure 1 denotes the problem formulation in excel and shows all the formulas.

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A array of decision variables for selecting the city is shown. A 1 in cell implies that city is selected and 0 means the city is not selected.

A product of the selection variable and the value in the within 15 minutes matrix is calculated as shown by the formula.

The constraint is to ensure that all cities have at least one fire station mapped within 15 minutes.

d.

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Explanation:

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