Aperson is studying a new headache medicine that has been deemed safe for human trials. the researcher
offers the new medicine to people suffering from headaches at several local hospitals. the researcher has
decided to use a blind study and form 2 sample groups. he gives patients in group a the actual real
experimental medicine. he gives patients in group b a fake treatment that is nothing more than a sugar pill
that looks like the real medicine,
how would you describe group b?
control group
placebo group
treatment group
regular group

Placebo Group

Step-by-step explanation:

Group B received a fake treatment, that is, they thought they were taking the  real  experimental medicine but actually they were taking sugar pill s that look like the real medicine. Without a placebo group to compare against, it is not possible to know whether the treatment itself had any effect.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

noncoplanar points are points that do not lie on the same line.