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
djyliett [7]
2 years ago
10

An athletic coach conducted an experiment to test whether a four-week stretching and flexibility program reduces the number of m

uscular injuries that occur during athletic events. The coach randomly selected 30 athletes from several sports and randomly assigned 15 athletes to the four-week program. The remaining 15 athletes did not participate in any type of flexibility program during the four weeks.
Which statements about this study are true?

This study uses random sampling.
This study uses a control group.
This study uses a repeated measures design.
This study uses blocking.
This study uses blinding.

Mathematics
2 answers:
ohaa [14]2 years ago
8 0

Answer: it’s random sampling and control groups.

Step-by-step explanation: i got a 100% on my test :)

nirvana33 [79]2 years ago
5 0

Answer: This study uses a control group, this study uses repeated measures design, and this study uses random sampling

Step-by-step explanation:

You might be interested in
Please help ill mark brilliant​
Anastasy [175]
B is the answer to the question :)
8 0
3 years ago
Read 2 more answers
At Oakton, Midlothian, and Jefferson high schools, the long jumpers employ different strategies for competition. At Oakton high
Scrat [10]
What that is exactly??? I want to help but I can’t! Tell me tell me
4 0
3 years ago
What is the value of -9 1/5 - 10 + 2/5 + 2(14 1/2 - 7)?​
Art [367]

Answer:

-9 1/5 - 10 + 2/5 + 2(14 1/2 - 7) = -3.8

Step-by-step explanation:

7 0
3 years ago
What is the greatest common factor of 60x4y7, 45x5y5, and 75x3y?
serg [7]
Factor and group common ones
60=2*2*3*5*x*x*x*x*y*y*y*y*y*y*y
45x^5^5=3*3*5*x*x*x*x*x*y*y*y*y*y
75x^3y=3*5*5*x*x*x*y

the commmon gropu to all is 3*5*x*x*x*y=15x^3y
8 0
3 years ago
(Express these ratios in their simplest form)
igor_vitrenko [27]

Answer:

3:4 itself.

3:4 itself.

Step-by-step explanation:

3:4 itself.

8 0
2 years ago
Other questions:
  • In how many ways could four people be divided into two groups of one person and one group of two people?
    9·1 answer
  • I need help asap please
    9·1 answer
  • Montel sold 13 popcorn buckets and 13 fruit baskets for a fundraiser. The fruit baskets cost $20.75 each. If Montel raised a tot
    6·1 answer
  • Jonathan is going to the movies. A ticket to the movies cost $12.95. He decides to invite 6 of his friends. How much will he pay
    11·2 answers
  • Stir-fry is tony's favorite food to cook, but it always makes a lot of smoke! Tony needs to know the volume of his kitchen so he
    5·1 answer
  • Seemas little sister is now 5 years old.if Her
    9·1 answer
  • Plz Answer This Mathematics Question??? NEED HELP ASAP
    9·2 answers
  • Distribute 3x(5x-5)<br><br>a) 12x^2+8x<br>b) 15x^2-15x<br>c) 12x^2-9x<br>d) 15x^2+10x​
    15·2 answers
  • What is the greatest whole number that MUST be a factor of the sum of any four consecutive positive odd numbers?
    14·1 answer
  • Instructions: Find the surface area of each figure. Round your answers to the nearest tenth, if necessary.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!