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>
Answer:
the answer is A
Step-by-step explanation:
casue i said so
Answer:
1 2/3
Step-by-step explanation:
Given :
Find the sum of 1/2, 4 /8 and 2 /3
1/2 + 4/8 + 2/3
L.c.m = 24
(12 + 12 + 16) / 24
40 / 24
= 1 16/24
= 1 2/3
Answer:
3x^2+15x-1=0
Step-by-step explanation:
4/(3x+15)=4x
4=12x^2+60x
12x^2+60x-4=0
3x^2+15x-1=0
Please solve after that, I cannot do everything for you
Answer:
use mathaway it helps all you have to do is take a picture it it will help u with the steps
