1 and 2 would be your answers
Answer:
Random assignment
Explanation:
Based on the specifications of the study and the researchers goal, it can be said that in order to reduce the chance that the children in one group have more aggressive personalities than those in the other group, the researchers should make use of Random assignment. This refers to using a randomized protocol in order to assign individuals randomly to each group, thus ensuring that each individual would have the exact same probability of being assigned to a specific group. This would prevent children with certain similar traits to be assigned to the same group because of those traits/personality.
Wait 9-10 months. If a baby pops out you were pregnant.
Answer:
0.025
Explanation:
Blood alcohol level is measured as the concentration of alcohol per unit of blood in the body. It is a good indication of how intoxicated a person is.
This can be measured by testing breathe, blood and even urine.
It is not a good system to measure how many drinks a person has had, since body weight, metabolism, health, etc. varies among different people, so testing the blood alcohol level is a good system to use.