Description
The following table shows the number, in millions, graduating from high school in the United States, in the given year.
t = Year | N = Number graduating |
---|---|
1985 | 2.83 |
1987 | 2.65 |
1989 | 2.47 |
1991 | 2.29 |
(No Response)
-0.09
million students per year(d) Estimate the value of N(1994). (Round your answer to two decimal places.)
(No Response)
2.02
million students
Explanation & Answer
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to get -0.09 they subtracted the value for 1989 from the one for 1991
2.29-2.47=- 0.19
Then you divide it by 2 to get the average
0.18/2
=-0.09
The second part they got 2.02 by subtracting the average for a year period of 3 years which is (-0.09 x 3)
= 2.29-0.18-0.09
=2.2
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