An experimental design where the experimental units are randomly assigned to the treatments is known as .

Completely randomized design

Explanation:

This is called a completely randomized design (CRD) where experimental units are assigned randomly to treatment.

We can define a completely randomized design (CRD) as one in which the treatments are assigned randomly and as such each experimental unit has equal chances of getting any one treatment. In this experimental design, any difference that is noticed among the experimental units that are getting the same treatment is regarded to be experimental error.

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.