Answer: In observational study observer has no control on the variables but in an experiment experimenter has control over the independent variable to record the change on the dependent variable.
Step-by-step explanation:
In statistics , an observational study is a study in which a researcher just observe effects on subjects in a certain manner without interfering them.
On the other hand an experiment is a process which is done by experimenter to demonstrate a known fact or create a discovery by applying some methods to the variables .
The basic difference between an observational study and an experiment is<em> in observational study observer has no control on the variables but in an experiment experimenter has control over the independent variable to record the change on the dependent variable.</em>
You plug in the given value for x.
F(-4)=(-4)2-4
F(-4)=-8-4
F(-4)=-12
F(0)=(0)2-4
F(0)=0-4
F(0)=-4
F(3)=(3)2-4
F(3)=6-4
F(3)=2
Answer:
A 1460
Step-by-step explanation:
Suppose that it is 185 students multiplied by 14 school districts.
ie 185*14=2590
4050-2590= 1460
Answer:
11 dimes equals 110
Step-by-step explanation:
so you have 3.45 cents.
The Method is that you add 1 block horizontally to the 2nd row of the figure every time you make a new one.
