variable is unanticipated factors that affects both variables of interest, often giving the false impression that changes in one variable causes changes in the other variable.

confounding variable

Explanation:

CONFOUNDING VARIABLE is a statistical term, that describes other or hidden variable, which often work like independent variable that also has an effect on dependent variable.

CONFOUNDING VARIABLE can cause two major problems, which are Increase variance and Introduce bias.

Hence,CONFOUNDING  VARIABLES is considered to be unanticipated factors that affects both variables of interest, often giving the false impression that changes in one variable causes changes in the other variable.

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

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