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
uranmaximum [27]
3 years ago
7

In an experimental study on friendliness and tipping, every alternate customer to whom the waiter is extra friendly toward are r

eferred to as the...A. Control group
B. Experimental group
C. Nonexperimental group
D. Dependent group
Mathematics
1 answer:
ankoles [38]3 years ago
8 0

Answer:

A. Control group  

Step-by-step explanation:

A control group is a group in an experiment or study that does not receive experimental procedure during such that it is then used as a benchmark to measure how the other tested subjects do.

An experimental group is a group in an experiment or study that receives an experimental procedure. The values of gotten from the test are recorded and the effect of independent variables on the dependent variables are determined.

Control experiment can be used to determine whether or not the customers are friendly. Experimental group will be the customers whom the waiter is extra friendly toward. The control group will be the alternate customer whom the waiter is not extra friendly toward.          

You might be interested in
A recent study examined the association between high blood pressure and increased risk of death from cardiovascular disease. The
sergey [27]

According to sources, the most probable answer to this query is that thee results seems to support a .05 probability. Meaning, this supports the hypothesis' claim. Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
6 0
3 years ago
Which of the following angles are supplementary to angle a? Select all that apply.
GuDViN [60]

Answer:

c is the supplement angle

3 0
3 years ago
He nine ring wraiths want to fly from barad-dur to rivendell. rivendell is directly north of barad-dur. the dark tower reports t
kiruha [24]

This problem is better understood with a given figure. Assuming that the flight is in a perfect northwest direction such that the angle is 45°, therefore I believe I have the correct figure to simulate the situation (see attached).

 

Now we are asked to find for the value of the hypotenuse (flight speed) given the angle and the side opposite to the angle. In this case, we use the sin function:

sin θ = opposite side / hypotenuse

sin 45 = 68 miles per hr / flight

flight = 68 miles per hr / sin 45

<span>flight = 96.17 miles per hr</span>

6 0
3 years ago
Mary worked a total of 6 1/2 hours during 5 days of work per week. What was her average workday?
spayn [35]
Your answer is: 3. 3 hours, 18 minutes
8 0
3 years ago
Read 2 more answers
12351 rounded to the nearest hundred explain how you rounded
Nataly_w [17]
\bf 12,\underline{351}\impliedby \textit{3 hundreds, and 51 units, let's round that}&#10;\\\\\\&#10;\begin{array}{llll}&#10;300----- 50-----400\\&#10;\qquad \qquad \uparrow\qquad \qquad \qquad \uparrow  \\&#10;&#10;\begin{array}{llll}&#10;anything\ here\\&#10;rounds\ up\ to\\&#10;300&#10;\end{array}\quad&#10;\begin{array}{llll}&#10;anything\ here\\&#10;rounds\ up\ to\\&#10;400&#10;\end{array}&#10;\end{array}&#10;\\\\\\&#10;\textit{therefore, the hundreds value of 300, the 51 tips it over to 400}&#10;\\\\\\&#10;12,\underline{400}
3 0
3 years ago
Read 2 more answers
Other questions:
  • The method used to factor trinomials of the form ax^2+bx+c can also be used to factor binomials of the form px^2+q by realizing
    11·1 answer
  • Wat is 7x² + 4x - 5= 0
    13·2 answers
  • It's B right? please help will mark brainliest
    5·1 answer
  • Solve by using substitution<br>-4x+y=6   and   -5x-y=21  
    11·2 answers
  • Which of the following is the solution to |x-1|=8
    5·2 answers
  • How many degrees represents 1 person ?
    10·2 answers
  • I need some help please What's |5| + |–7|?
    11·1 answer
  • Convert x=-3 to polar equation
    12·1 answer
  • A cement company is making 8 solid-cement spheres. Each sphere has a diameter of 2.5 ft.
    10·1 answer
  • The stem-and-leaf plot shows the test scores for a chemistry class. How many students had a score greater than 90 points? Stem a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!