graph the line of best fit. click to plot a point. two points plot a line. click a plotted point to delete it.

Explanation:

Step1: Calculate the means of x - values and y - values

Let the x - values be (x_1,x_2,\cdots,x_n) and y - values be (y_1,y_2,\cdots,y_n). Calculate (\bar{x}=\frac{1}{n}\sum_{i = 1}^{n}x_i) and (\bar{y}=\frac{1}{n}\sum_{i = 1}^{n}y_i).

Step2: Calculate the slope (m)

(m=\frac{\sum_{i = 1}^{n}(x_i-\bar{x})(y_i - \bar{y})}{\sum_{i = 1}^{n}(x_i-\bar{x})^2})

Step3: Calculate the y - intercept (b)

(b=\bar{y}-m\bar{x})

Step4: Plot the line

Use the equation (y = mx + b). Choose two x - values, substitute them into the equation to get the corresponding y - values. Plot these two points and draw a straight line through them.

Answer:

Plot the line (y=mx + b) using two points obtained from the equation, where (m) and (b) are calculated as above.