In: Statistics and Probability
The table below contains the demand and price and total cost data for the production of x widgets. Here p is the price (in dollars) of a widget for an annual demand of x widgets, and C is the annual total cost (in dollars) of producing x widgets per year.
Annual demand Price
10 147
20 132
30 125
40 128
50 113
60 97
70 85
80 82
90 79
100 53
Use the given data to find a regression line that best fits the price-demand data for price p in dollars as a function of the demand x widgets. Here, price is the dependent variable, and demand is the independent variable. Find the regression function for price, and write it as p ( x ) = m x + b.Find the regression function for price, and write it as p ( x ) = m x + b.