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
aliya0001 [1]
3 years ago
9

Is a survey of the guests about their preference of food at a party an observational study or experimental study? If it is an ex

periment, what is the controlled factor?
Select the correct answer below:


The study is an experiment. The controlled factor is the party.


The study is an experiment. The controlled factor is the food.


The study is an experiment. The controlled factor is the survey.


The study is an observational study.
Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:

The study is an observational study.

Step-by-step explanation:

Observational study: In research methods, the term "observational study" is determined as one of the different studies that are being conducted by the researchers to observe or study the effects of a specific risk factor, treatment, diagnostic test, or some other intervention in the absence of an effort to change which participants are being exposed and which is not being exposed to it.

Types: Cohort study and case-control study.

In the question above, the given statement represents the observational study.

You might be interested in
If u have 25% how many squares would you shade if there were 6 in total?
egoroff_w [7]

Answer:

1.5 squares

Step-by-step explanation:

4 0
3 years ago
In circle O, ST is a diameter.
Andreas93 [3]

The value of x must be 25.0. The correct option is the second option-  25.0

<h3>Solving Linear equations </h3>

From the question, we are to determine the value of x

From the given diagram, we can write that

m ∠SOR + m ∠UOR + m ∠TOU = 180° (<em>Sum of angles on a straight line</em>)

∴ (2x +8)° + (3x - 14)° + (3x -14)° = 180°

2x° + 8° + 3x° -14° + 3x° -14° = 180°

Collect like terms

2x° + 3x° + 3x° + 8° - 14° -14° = 180°

8x° -20° = 180°

8x° = 180° + 20°

8x° = 200°

x = 200/8

x = 25.0

Hence, the value of x must be 25.0. The correct option is the second option-  25.0

Learn more Solving linear equations here: brainly.com/question/1413277

#SPJ1

8 0
2 years ago
Read 2 more answers
Can u please help me find the value of each variable?
jarptica [38.1K]

The arc measure, which corresponds to the central angle measure, is always twice the subtended angle.

So 60 is twice a,

Answer: a=30

84 is twice b

Answer: b=42

60 + 100 is twice c,

Answer: c=80

d is what's left of the circle, total 360 degrees,

d = 360 - 84 - 60 - 100 = 116

Answer: d=116

3 0
3 years ago
Find the value of x.
slamgirl [31]
\cos x^o=\dfrac{3.0}{6.8}\\\\\cos x^o=0.4412\to x^o\approx64^o\\\\Answer:\ x=64
6 0
3 years ago
Read 2 more answers
A series of specialty license plates consists of three digits followed by two letters. How many unique license plates are possib
NeTakaya
There are only twenty four letters your​ can use (can 't have 1 or 0 as they look like 1 and 0) therefore the number of combinations is 10× 10x 10 x 24x24x24x=13824000 so therefore 10 different possible digits and 26 different possible letters
3 0
3 years ago
Other questions:
  • G= -4b - 3 + 3a , for a
    8·1 answer
  • Use the number line to solve 235 +123
    8·1 answer
  • Find cos(sin-1(3/5))
    10·1 answer
  • If an image is translated (x-3, y+2),
    14·1 answer
  • Hi guys! Please look at my screenshot below to answer this question, it's only one question. You guys will get Brainliest for he
    11·2 answers
  • 2x−1/4y=1 solve for y please
    12·2 answers
  • Which is the graph of the step function f(x)?
    15·2 answers
  • Evaluate. Express your answer in scientific notation.<br> 4.85 x 103 + 77, 300
    5·1 answer
  • Find the missing partial products of 2.8x4.6
    14·1 answer
  • Is the following linear, exponential, or neither? 3,6,9,12,15,18...
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!