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
Aliun [14]
3 years ago
7

A school psychologist wants to test the effectiveness of a new method of teaching Art. She recruits 600 second-grade students an

d randomly divides them into two groups. Group 1 is taught by means of the new method, while Group 2 is taught via traditional methods. The same teacher is assigned to teach both groups. At the end of the year, an achievement test is administered and the results of the two groups compared. What is the response variable in this experiment?
a. The students’ ability in Art
b. The score of Group 1 on the achievement test
c. The score on the achievement test.
d. The score of Group 2 on the achievement test
Mathematics
1 answer:
yuradex [85]3 years ago
3 0

Answer:

c. The score on the achievement test of both groups.

Step-by-step explanation:

A school psychologist recruits 600 second-grade students and randomly divides them into two groups.

Group 1 is taught by means of the new method, while Group 2 is taught via traditional methods.

We have to find the response variable. A response variable is the outcome variable or dependent variable in the experiment.

Here this is - The scores on the achievement tests of both group 1 and group 2.

You might be interested in
What is the slope of the line that passes through
den301095 [7]

Answer:

what does it pass through

7 0
3 years ago
What 0.04 percent form is?
sergij07 [2.7K]
4%
This is because 1 = 100%
0.4 would equal 40%
So 0.04 is 4%
3 0
3 years ago
-1(t+8)=-7.1 solve for t
Darina [25.2K]

Answer:

t = -0.9

Step-by-step explanation:

-1(t+8) = -7.1

(t+8) = 7.1

t = -0.9

7 0
3 years ago
Read 2 more answers
Three security cameras were mounted at the corners of a triangles parking lot. Camera 1 was 110 ft from camera 2, which was 137
Nata [24]

Answer:

<em>Camera 2nd has to cover the maximum angle, i.e. </em>78.70^\circ.

Step-by-step explanation:

Please have a look at the triangular park represented as a triangle \triangle ABC with sides

a = 110 ft

b = 158 ft

c = 137 ft

1st camera is located at point C, 2nd camera at point B and 3rd camera at point A respectively.

We can use law of cosines here, to find out the angles \angle A, \angle B, \angle C

As per Law of cosine:

cos C = \dfrac{a^{2}+b^2-c^2 }{2ab}\\cos B = \dfrac{a^{2}+c^2-b^2 }{2ac}\\cos A = \dfrac{b^{2}+c^2-a^2 }{2bc}

Putting the values of a,b and c to find out angles \angle A, \angle B, \angle C.

cos C = \dfrac{110^{2}+158^2-137^2 }{2\times 110 \times 158}\\\Rightarrow cos C = \dfrac{12100+24964-18769 }{24760}\\\Rightarrow cos C =0.526\\\Rightarrow C = 58.24^\circ

cos B = \dfrac{110^{2}+137^2-158^2 }{2\times 110 \times 137}\\\Rightarrow cos B = \dfrac{12100+18769 -24964}{30140}\\\Rightarrow cos B = \dfrac{5905}{30140}\\\Rightarrow cos B =0.196\\\Rightarrow B = 78.70^\circ

cos A = \dfrac{158^{2}+137^2-110^2 }{2\times 158 \times 137}\\\Rightarrow cos A = \dfrac{24964+18769-12100}{43292}\\\Rightarrow cos A = \dfrac{31633}{43292}\\\Rightarrow cos A = 0.731\\\Rightarrow A = 43.05^\circ

<em>Camera 2nd has to cover the maximum angle</em>, i.e. 78.70^\circ.

6 0
3 years ago
What are the next letters BE GL LO QT
Tpy6a [65]
What are we supposed to be basing this off of? is there no additional information?
8 0
3 years ago
Other questions:
  • I need help with this one , please .  (13)^2(13)^-4(13)^5 = 13^_____    to what power ?    Can you explain please
    8·1 answer
  • (02.02 HC)
    15·1 answer
  • Determine whether the events are independent (I) or dependent (D). Place your answer in the blank provided. 1. Ramiro draws a ma
    12·1 answer
  • Please help me.!.!.!.!.!.
    5·2 answers
  • Which of the following is a composite number? <br><br> A. 13 <br> B. 63 <br> C. 61 <br> D. 31
    8·1 answer
  • Área de un prisma rectangular 10 * 8 de base y 6 de altura
    13·1 answer
  • Solve the formula d = rt for t when d = 280 and r = 40
    13·1 answer
  • Is there anyone who is expert in maths ?I’m in grade 9 can someone help me with maths pls tomorrow is my exam :(
    14·1 answer
  • How to mark on a number line if it is greater than or equal to
    11·1 answer
  • 22. A garage sale raise $400 for a school trip. Ir 15% of the money covered point
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!