5. Use least-squares regression to fit a straight line to data given in table. Show data and line in the same graph. Give equation of the fitted line. 0 3 5 9 15 17 5 6 7 9 11 12 X y 12 8 19 14
5. Use least-squares regression to fit a straight line to data given in table. Show data and line in the same graph. Give equation of the fitted line. 0 3 5 9 15 17 5 6 7 9 11 12 X y 12 8 19 14
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:5. Use least-squares regression to fit a straight line to data given in table.
Show data and line in the same graph. Give equation of the fitted line.
0
3
9
15
17
5
6
9
11
12
X
y
5
7
V(knots) 6
7
9
P (kW) 170 270 400 560
12
8
6. Fit a straight line, a parabola and a cubic equation to the speed power data
of a ship. Compare your results. (use matlab, excel etc. to obtain graph and
relation)
10
770
19
14
11 12 13 14 15
1030 1360 1800 2350 3100
7. Estimate the first derivative the function f(x) = e* cosx, at x=2.0
employing step sizes of h= 0.25. Use centered finite divided difference
formulas with 2 and 4 point. Compare your results with true value.
Estimate error, &t.
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