Question

1. Based on your arbitrary data and scatter plot in python, show

the correlation between your data. 2. Please do one arbitrary
equation for the first-order differential equation for the Euler
method.

Answer 1

To find the correlation and least-squares line from scatter plot data, follow these steps: draw the scatter plot, calculate the least-squares line, write the equation, plot the line, calculate correlation, and find the average CPI for a specific year.

Step-by-step explanation:

1. Draw a scatter plot of the data.
2. Calculate the least-squares line by finding the slope (b) and y-intercept (a).
3. Write the equation in the form ŷ = a + bx.
4. Plot the regression line on the same scatter plot.
5. Calculate the correlation coefficient to determine if it is significant.
6. To find the average CPI for the year 1990, locate the point on the regression line corresponding to 1990, and read the y-coordinate value.