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
Elijah bought a chest of drawers originally priced at $50.40 but on sale for 40% off. After 6.25% sales tax, what was the total
wolverine [178]

Answer: 96.9

Step-by-step explanation:

666

3 0
3 years ago
Read 2 more answers
You have 15 pennies in your pocket. Of those pennies, 3 are Canadian. Suppose you pick a penny out of your pocket at random. Fin
choli [55]
12 out of 15. 12/15 = 4/5 answer is b
4 0
3 years ago
Read 2 more answers
Evaluate function helpp mee plzzz
Pavlova-9 [17]

Answer:

ye i dont know but nice computer bro

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Another easy question need fast please
Tresset [83]

Answer:

30.25

Step-by-step explanation:

All angles of a line must add up to 180. Since we already know that one angle is 90 degrees, we know that the other angles should add up to 90 degrees in order for all of the angles to add up to 180 degrees:

(3x-7)+(x+8)=90

4x+1=90

4x=89

x=22.25

22.25+8= 30.25

3 0
3 years ago
*Help ASAP Please! Studying for finals and I'm stuck on this question!*
Nezavi [6.7K]
First I am going to assume that these are both right triangles based off of look and because it is much easier. Without it you have to use law of sines or law of cosines...
So to find x you must first find y which can be done simply by using the pythagorean theorem. This theorem is defined as the sum of the squared legs is equal to the sum of the hypotenuse or x^2 + y^2 = z^2

If we substitute in the known values 16^2 + y^2 = 20^2 and solve for y we get that y = sqrt(20^2 - 16^2), this then simplifies to y = 12

Finding x is much more annoying, the easiest way I can immediately see is to find the upper angles by doing sin(16/20) and then 90 - sin(16/20) since the complementary angle is the one you want. I don't have a calculator or a trig table with me right now but I will tell you that x will be equal to 12 ÷ the inverse cosine of the angle (90degrees - sin(16/20)).

I am pretty sure the answer is D though because we know for sure y = 12 and x has to be greater than y because the hypotenuse must be larger than both legs. It could be E but you won't know unless you do the math for x. So it is either D or E but I would be surprised if a Professor made you do all of the work just to say it doesn't work...
8 0
3 years ago
Other questions:
  • What happened to the man who fell into the bubble-gum-mixing machine
    8·2 answers
  • Sin B= 0.65 what is the measure of angle B to the nearest degree
    7·1 answer
  • Investing is a game of chance. Suppose there is a 36% chance that a risky stock investment will end up in a total loss of your i
    14·1 answer
  • PLEASE HELP! YOU WILL GET 10 BRAINLIST!! PLEASE SHOW ALL OF YOUR WORK/HOW YOU GOT THE ANSWER
    12·1 answer
  • Figure ABCD is reflected across the x-axis. What are the coordinates of A' , B' , C' , and D' ? Enter your answer by filling in
    7·2 answers
  • PLEASE HELP FAST 50 POINTS<br><br> what is the sum of -1/11 and -5/11 A. 4/11 B.6/11 C.-4/11 D.-6/11
    15·2 answers
  • Find the constant rate of change of the line ​
    15·1 answer
  • Help me please I beg if you can
    9·1 answer
  • BRAINLIEST IS YOU ANSWER FAST!
    9·2 answers
  • Alex had $750,000 he lost 80% how many dollars did he lose ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!