Why is it Necessary for every experiment to include a control group? A: the control group represents experimental conditions and
used for comparison. B: The control group represents normale conditions and always changes. C: The control group represents the experimental conditions and always changes. D: The control group represents normal conditions and is used for comparison. IF YOU HAVE SNAP CHAT AND CAN HELP ME ADD ME awesomelucygirl! I have like 6 more questions :D
The answer to the question is D as the purpose for a control group is to be a comparison to the experimental group (the group that is a part of the experiment)
an example is a person who wants to test if a particular pill makes people run faster. He gets a control group and a test group. After observing the 2 groups he compares the control group to the test group. So control groups are used for comparison to see if the hypothesis is correct or it is just a mare assumption or coincidence
<span>rate of technological progress. The steady-state growth rate of total output is equal to the rate of population growth (n) plus the rate of technological progress (g). A change in the rate of technological progress will permanently change the growth rate of total output. </span>