Answer:
Researchers typically use random assignment.
Explanation:
Random assignment is when a researcher uses chance to make sure all participants have the <em>same opportunity to be in either group</em> during an experiment. It is used to decide in which group the now selected participants will be in.
An example of random assignment is the<em> flip of a coin. </em>
Answer:
no
Explanation:
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Answer: Crops providing significant food supplies were exchanged. Some of the crops Europeans brought to the New World have become food source staples around the world. These crops include wheat, barley, soybeans, rice, and various leafy vegetables.
Explanation:
Answer:ok i look good today
Explanation: