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Biology, 21.06.2019 20:00, zaratayyibah
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
Biology, 22.06.2019 06:10, 21121212cutecheytown
Which process of living things produces water that enters the water cycle
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Biology, 22.06.2019 07:30, sawyerharper
Which locations on the map are low-pressure areas? a b c d e
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