Answer:
5) random assignment
Explanation:
Random assignment: It is used in a psychological experiment, as a chance procedure to make sure that every single participant has the same probability of getting assigned in any mentioned group. The study participants are being randomly assigned to each group, the same as in the experimental group.
Example: In an experiment, every participant gets assigned in either an experimental group or a control group.
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Answer:
Explanation:
Their astronomy was also carried on by later groups. They were probably obsess with the timing of religious ritual, as the Mayans and Aztec would be after them. Even the ritual ball game so popular among the Aztecs is believed to have been played in the ancient Olmec civilization.
Answer:
There wouldn't be enough tension from the cart to the track, so the cart wouldn't go anywhere without force. Since there is little to no atmosphere in space, there would be not enough resistance for the rollar coaster to go.