Question

1- For the following given data x 2.5 3.5 5 6 7.5 10 12.5 y 7 5.5 3.9 3.6 3.1 2.8 2.6 a- Write the proper MATLAB code for the straight line that best fit the relation y=a ebx, use print command to print the above exponential function after finding the parameters a &b. then plot the function y. b- Find the standard deviation, standard error of estimate and the correlation coefficient. c- Use print command to print the value of the standard deviation, the value of the standard error of estimate and the value of the correlation coefficient. 2- Write the proper MATLAB code to find the solution of the following system of equations using Cramer's Rule( method of determinants) {4 x+5y =011x+y+2z=3 x+5y+2z=1

          1- For the following given data
x 2.5 3.5 5 6 7.5 10 12.5
y 7 5.5 3.9 3.6 3.1 2.8 2.6

a- Write the proper MATLAB code for the straight line that best fit the relation y=a ebx, use print command to print the above exponential function after finding the parameters a &b. then plot the function y.
b- Find the standard deviation, standard error of estimate and the correlation coefficient.
c- Use print command to print the value of the standard deviation, the value of the standard error of estimate and the value of the correlation coefficient.

2- Write the proper MATLAB code to find the solution of the following system of equations using Cramer's Rule( method of determinants)

{4 x+5y =011x+y+2z=3 x+5y+2z=1

1- For the following given data
x 2.5 3.5 5 6 7.5 10 12.5
y 7 5.5 3.9 3.6 3.1 2.8 2.6

a- Write the proper MATLAB code for the straight line that best fit the relation y=a ebx, use print command to print the above exponential function after finding the parameters a b. then plot the function y.
b- Find the standard deviation, standard error of estimate and the correlation coefficient.
c- Use print command to print the value of the standard deviation, the value of the standard error of estimate and the value of the correlation coefficient.

2- Write the proper MATLAB code to find the solution of the following system of equations using Cramer's Rule( method of determinants)

4 x+5y =011x+y+2z=3 x+5y+2z=1

Added by Michael K.

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