Causal models
a. use the average of the most recent data values in the time series as the forecast for the next period.
b. occur whenever all the independent variables are previous values of the same time series.
c. relate a time series to other variables that are believed to explain or cause its behavior.
d. provide evidence of a causal relationship between an independent variable and the variable to be forecast

Option (C)

Explanation:

A causal model also referred to as a structural causal model is known as a conceptual model which describes causal mechanisms or process of a system. These models can also improve the study designs, they do so by providing rules which are clear for deciding which of the independent variables is required to controlled.  Causal models tends to relate time series to several other variables which are believed or known to explain the behavior.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

dude thats to long figure it

step-by-step explanation: