<span>If using excel, you can use this formula:
DATEDIF(start_date, end_date, unit)
For instance,
DATEDIF(9/1/2014, today, "d")
or
DATEDIF(B10, today, "d")</span>
Answer:
In studies about new medicines, researchers usually give one group of patients the medicine that is designed to treat an illness. They give another group of patients a placebo, which is taken the same way as the medicine but does not actually contain the ingredients of any medicine. Different medicines are tested in different experiments, but the placebos usually contain the same non-medical ingredients. If both groups of patients are healed, then researchers cannot be sure whether the medicine caused improvement, but if the group given the medicine is healed while the group given the placebo remains ill, researchers can conclude that the medicine causes the illness to go away.
In medical experiments, which group receives placebos?
the experimental group
the control group
both the experimental and control groups
neither the experimental nor control group
Explanation:
Answer:
Explanation:
Because the electricity from wind farms is sold at a fixed price over a long ... and wind is now the largest source of renewable power in the United States. ... by the heating of the atmosphere by the sun, the rotation of the Earth, and the ... Wind power must still compete with conventional generation sources on a cost basis.
I'm almost certain that it is A. "Help you present your data with concise statements". Hope this helped :) Xx
Solid is your answer for the day
