The rapid advancement in calculator technology over the past

The rapid advancement in calculator technology over the past 30 years has led to a decrease in the price of a basic, four-function calculator. In August 1972, the four-function Sinclair Executive calculator was introduced for around $150. By the end of the decade, comparable calculators were selling for under $10. Suppose the table gives the average price of a four-function calculator from 1972 to 1980. Use logistic regression to find the logistic model for the data. (Round all numbers to four decimal places.) C (t) = (a) Create a scatter plot of the data. Is the scatter plot increasing or decreasing? increasing decreasing

Solution

As you can see the value of cost is decreasing with increasing in t so function is decreasing. Now you can see the difference between two successive cost is not constant so function is not straight line.

So D option