investments

Assume the following daily closing for the Dow Jones Industrial Average:

Day DJIA Day DJIA
1 12,010 7 12,220
2 12,100 8 12,130
3 12,165 9 12,250
4 12,080 10 12,315
5 12,070 11 12,240
6 12,150 12 12,310

a.

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