This topic contains a solution. Click here to go to the answer

Author Question: Define observational study and experiment. Define the terms treatment group and control group as ... (Read 114 times)

lak

  • Hero Member
  • *****
  • Posts: 546
Define observational study and experiment. Define the terms treatment group and control group as part of your answer.
 
  What will be an ideal response?

Question 2

Suppose that two balanced dice, a red die and a green die, are rolled. Let Y denote the value of where G represents the number on the green die and R represents the number on the red die. What are the possible values of the random variable Y?
 
  A) 0, 1, 2, 3, 4, 5 B) 0, 1, 2, 3, 4, 5, 6
  C) -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 D) -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

epscape

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

In an observational study, we observe and measure specific characteristics, but we don't attempt to manipulate or modify the subjects being studied. In an experiment we apply some treatment and then proceed to observe its effects on the subjects. In the experiment, the group receiving the treatment is called the treatment group. The control group is the group that is not given the treatment.

Answer to Question 2

C




lak

  • Member
  • Posts: 546
Reply 2 on: Jul 25, 2018
Thanks for the timely response, appreciate it


cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

For a complete list of videos, visit our video library