# Please provide the difference between constant and random variable.

Hi all! I have lost all hope but I believe this forum can help me. My question is that what is difference between constant and random variable.

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## 4 replies

"A very important point to note here is that, from the MATHEMATICAL standpoint, simple linear regression requires that X is a NON-RANDOM variable, whereas Y is a RANDOM variable. For example, consider the case of agricultural experiments. If we conduct an experiment to determine the optimal amount of a particular fertilizer to obtain the maximum yield of a certain crop, then the amount of fertilizer is a non-random variable whereas the yield is a random variable. This is so because the amount of fertilizer is in our OWN control. But, the yield is a random variable because it is NOT in our control. In connection with determining the line of BEST fit, the first point is that.Portion probability Source: http://in.docsity.com/en-docs/T_Distribution-Statistics-Solved_Quizes_"

Ceaseless varibale will be the changing which often isn't going to modify. This usually keep on being very same. Additionally it is termed neo chance variable.