Answer:
random assignment, a random sample
Explanation:
In an experiment which requires groups the groups are to be made sure that members of each group is selected at random. This is known as random assignment.
The selection of participants from a population randomly i.e., having no pattern is called random sampling and the sample is called random sample. The random sample is selected as such in order to be representative of the population.
c. Congo
the Congo (2,600 miles) and the Nile are the only African rivers longer than the Niger
Answer:
An evolutionary theorist would be interested in whether:
c. math abilities are biologically built into being male.
Explanation:
An evolutionary theorist would be concerned with how genes manifest after being passed on from generation to generation. Evolution itself can be defined as the change in characteristics we inherit over time. Since, in the case described, the boy gets good grades in math while the girl doe not, an evolutionary theorist would consider the possibility of a genetic difference between the two being the cause for such an ability. Perhaps, the boy has genes that make it easier for him to learn math.
Answer:
It is completely unsafe and can be harmful to both the installer as well as the people who will eventually use the electric outlets. Also, it poses several issues even during the installation since there are several scenarios and impacts or obstacles they didn't consider.