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
wolverine [178]
3 years ago
13

Sickle-cell disease is a painful disorder of the red blood cells that in the United States affects mostly African Americans. To

investigate whether the drug hydroxyurea can reduce the pain associated with sickle-cell disease, a study by the National Institutes of Health gave the drug to 150 sickle-cell sufferers and a placebo to another 150 sufferers. The researchers then counted the number of episodes of pain reported by each subject. What is the response variable in this study
Mathematics
1 answer:
storchak [24]3 years ago
5 0

Answer:

<u>The response variable is; reduction in the pain associated with sickle-cell disease.</u>

<u>Explanation:</u>

Note, a response variable (dependent variable) simply refers to resulting effect (either significant or insignificant effect) of the independent variable on the subjects of the experiment.

In other words, the effect of the drug hydroxyurea after the experiment would show whether it leads to or not lead to a reduction in the pain associated with sickle-cell disease.

You might be interested in
I will give brainliest!! THERE IS NO OTHER INFORMATION GIVEN!! In ⊙O, chord XY is 8 cm long and is 10 cm from O. What is the rad
Zielflug [23.3K]

Answer:

radius ≈ 10.77 cm

Step-by-step explanation:

The segment from the centre O to the chord is a perpendicular bisector.

Thus 2 right triangles are formed with legs 10 cm and 4 cm ( half of XY )

The radius r is the hypotenuse.

Using Pythagoras' identity, then

r² = 4² + 10² = 16 + 100 = 116 ( take the square root of both sides )

r = \sqrt{116} ≈ 10.77 cm ( to 2 dec. places )

4 0
3 years ago
Read 2 more answers
What is the decimal representation of seven hundredths? A. 7. B. 700. C. 007. D. 07
Paraphin [41]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
Evaluate log38, given log32 ≈ 0.631.
ArbitrLikvidat [17]
\log_38-\log_32^3=3\log_32\approx3\cdot0.631=1.893\\\\Used:\log_ab^n=n\cdot\log_ab
4 0
3 years ago
Read 2 more answers
Determine the greatest common factor of the following expressions<br> (4x2y2, 3xy4, 2xy2
SashulF [63]
12xy i think lol :) hope that helps a bit 
4 0
3 years ago
At a local track meet, RCMS won 3 blue ribbons than red ribbons. They also won 7 more yellow ribbons than red ribbons. RCMS won
erma4kov [3.2K]
Let no red ribbons=x
no. Of blue ribbons=x+3
No. Of yellow ribb9ns=x+7
Totsl ribbons=28
28=x+x+3+x+7
28=3x+10
3x=28-10
3x=18
X=18/3
X=6

No .of red ribbons=6
No. Of blue ribbons=x+3=9
No. Of yellow ribbons=x+7=13
5 0
3 years ago
Other questions:
  • What is the length (magnitude) of the vector (7,-2)?
    6·1 answer
  • Which type of display best shows a change over time? A. Stem-and-leaf plot B. Histogram C. Line Graph D. Cumulative frequency
    11·2 answers
  • Sam is staining the wooden floor of a court. The court is in the shape of a rectangle. Its length is 33 feet and its width is 32
    7·2 answers
  • PLEASE HELP!!!!!!! WILL GIVE BRANLIEST ANSWER IF CORRECT
    13·1 answer
  • 9. What is the solution to the<br> equation log4 (5x + 9) = 3?
    6·1 answer
  • In the diagram, the measure of angle 9 is 85°
    11·2 answers
  • What is the measure of DAC?<br><br> - 30<br> - 45<br> - 60 <br> - Not enough information
    5·2 answers
  • Marqualyn needs help...
    9·1 answer
  • 5 of 10<br> What is the decimal multiplier to increase by 2.8%
    10·1 answer
  • If a circle has a radius of 50 cm what is the area
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!