1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
3 years ago
10

A recent research study randomly divided participants into groups who were given different levels of Vitamin E to take daily. On

e group received only a placebo pill. The research study followed the participants for eight years to see how many developed a particular type of cancer during that time period. Which of the following responses gives the best explanation as to the purpose of randomization in this studyA. To increase the accuracy of the research results B. To ensure that all potential cancer patients had an equal chance of beng selected for the study. C. To reduce the amount of sampling error D. To produce treatment groups with similar characteristics E. To prevent skewness n the resuits. F. I am not familiar with this matorial
Mathematics
1 answer:
horrorfan [7]3 years ago
5 0

Answer: D. To produce treatment groups with similar characteristics

Step-by-step explanation:

By using randomization in sampling, the Sample would be more representative of the Population it is based off of because different demographic characteristics may be picked.

This leads to a situation where the groups have similar characteristics between themselves thereby making it easier for comparison. For example, Group 1 would have certain types of people that will be represented in Group 2 and Group 3 as well. That way the effects of the drug can be properly studied as it affects different people. For instance, say there are 4 obese people in a sample of 10, instead of group one having all obese people, randomization may be able to give group one, 2 obese people and 2 obese people to group 2 as well. That way when comparing, the effects of the drug on the two groups is easier to be compared because the two groups have similar people.

You might be interested in
A mobile auto-detailing company pays you $12.75 an hour. Last summer you worked 35.25 hours a week. What was your total straight
masya89 [10]

multiply the hourly rate by number of hours worked

12.75 x 35.25 = 449.44 per week

449.44 x 2 = 898.88 for two weeks

5 0
3 years ago
Read 2 more answers
Can someone help me my class is at 9
ololo11 [35]

Answer: 1/4

Step-by-step explanation: 20 is a fourth of 80

Please mark brainleist if I got it right. I really need it to level up

6 0
2 years ago
Round 7.954 to the place named
Andrej [43]
What is it rounded too?
4 0
3 years ago
I forgot what to do
kvv77 [185]
Pretty sure it would be 21x^2+16x+17y
8 0
3 years ago
What is 3x+33 in factorising?
forsale [732]
3 times x + 33

hope i helped
5 0
3 years ago
Other questions:
  • Add 4 to n then devide by 5
    9·1 answer
  • The measure of the supplement of an angle is 36 less than the measure of the angle. Find the measures of the angles.
    15·1 answer
  • What is the answere I just wanna check
    7·2 answers
  • Sketch the quadratic function ƒ(x) with a vertex at (–1, 2) and the points (0, 0) and (–2, 0). Which statement describes the par
    14·2 answers
  • Another one, I’ve been stuck for 2 weeks now
    10·1 answer
  • List the factors of 4
    8·2 answers
  • a herd of 86 horses has 75 white and some black horses.what is the ratio of black horses to white horses?
    10·2 answers
  • Three fractions between 4/5 and 4/6
    14·1 answer
  • Just 2 and 3 .....................................
    15·1 answer
  • Please help, lots of points offered. No scam answers.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!