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
olchik [2.2K]
3 years ago
15

A researcher is conducting an experiment to test a new vitamin supplement. The researcher has recruited 8

Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0

Answer:

(C) 32

Step-by-step explanation:

This is a problem of Permutation and Combination, not probability.

This clarification is given because most questions like this are on Probability and Statistics.

The researcher has recruited 8  participants and must divide them into two groups of 4 people each.

So there's:

GROUP A - Placebo Group

GROUP B - Experimental Group

Since the experiment is on humans - distinct objects - they will have distinct identities. Assume the 8 participants are lined up according to identities 1,2,3,4,  5,6,7,8

[2+2+2+2  +2+2+2+2] × 2 = 16×2 = 32

You might be interested in
(-2 1/3 + 5 1/5) + 1 1/3 =
Iteru [2.4K]

4Answer:

exact form:

\frac{21}{5\\}

decimal form:

4.2

mixed number form:

4\frac{1}{5}

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The diagram shows a solid triangular prism. Height 6cm width 4cm length 10cm the prism is made from wood with a density of 0.8 g
miss Akunina [59]

Answer:

192g3

Step-by-step explanation:

Step 1 find the volume

6×4×10=240

Step 2 find the mass

240× 0.8g/cm3= 192g3

7 0
3 years ago
If the coordinates of A and B are (-3, a) and (1, a+4) respectively and the mid point of AB is (-1, 1),
goldfiish [28.3K]

a=-1

Using the midpoint formula directly from the topic meaning

\frac{x_{1}+x_{2}  }{2}  or  \frac{y_{1}+y_{2}  }{2}

so

\frac{a+a+4}{2} =1\\a=-1

4 0
2 years ago
The formula for the area of a circle is A=(pi)r^2<img src="https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E%7B2%7D" id="TexFormula1" tit
ivolga24 [154]

Answer:

i hope its right

Step-by-step explanation:

4 0
3 years ago
Margaret asked her classmates how many pets they own. The responses are recorded in the table.
ad-work [718]
16/23 would be the answer
5 0
2 years ago
Other questions:
  • What value of x is in the solution set of 3(x-4)greater than or equal to 5x+2
    9·1 answer
  • Please solve no. 8 if you can all but at lesat no. 8​
    9·1 answer
  • 5x6-1+3=28 brackets or braces should be added
    11·1 answer
  • Which of the following numbers would be farthest to the right on a number line?
    13·1 answer
  • 8+3(5-1) =20 I am very confused on how this equals 20, someone please explain. thanks
    15·1 answer
  • What is 5/9 divided by 4/9 answer
    5·1 answer
  • Find the general solution of the given system. Use a computer system or graphing calculator to construct a direction field and t
    10·1 answer
  • spent $135 at the store. He bought a pair of pants for $27. Then he bought 9 shirts. If each shirt cost the same amount, how muc
    6·1 answer
  • How do you convert decimals between standard and expanded form
    7·2 answers
  • -2/9u=12<br><br> Solve for u
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!