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
lidiya [134]
3 years ago
7

William the researcher conducted a study on monitor size and reaction time. The research matrix is given below. 17 inch 19 inch

21 inch 25 participants 25 participants 25 participants If you wanted to give every participant in the study a piece of paper with the contact information of the researchers, how many pieces of paper will you need for this between subjects design?
Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

225 p/p

Step-by-step explanation:

This design consists of 3 groups of participants, each with 25 members and three case studies, thus:

              case (1) 17 inch ----------- 25 members

              case (2) 18 inch ----------- 25 members

              case (3) 21 inch ----------- 25 members

Total:      case =  3           ----------- 75 members

Total pieces of paper = 3*75 = 225 piece of paper

You might be interested in
The sum of two numbers is 262. The difference of those same two numbers is 172. Which answer choice shows both numbers?
STatiana [176]

Answer:

A = 217

B = 45

Step-by-step explanation:

A+B = 262

A - B = 172

A = 172 + B

172 + B + B = 262

2B = 90

B = 45

A = 172 + (45)

A = 217

HOPE THIS HELPS!!!!

8 0
2 years ago
Solve for d: d + 9 = 15 show work please
oksian1 [2.3K]

Answer:

6

Step-by-step explanation:

First, subtract 9 on both sides:

d+9-9=15-9

d=6

Hope this helped!

5 0
3 years ago
Read 2 more answers
0.3(3a-4)-0.05(8a)(-7a)
Anit [1.1K]

Answer:

2.8a²+0.9a - 1.2

Step-by-step explanation:

Given the expression 0.3(3a-4)-0.05(8a)(-7a)

Expand using the distributive law

0.3(3a-4)-0.05(8a)(-7a)

0.3(3a)-0.3(4)-0.05(8a)(-7a)

0.9a-1.2 - 0.05(8a)(-7a)

0.9a - 1.2 + 2.8a²

Rearrange

2.8a²+0.9a - 1.2

Hence the required expression is 2.8a²+0.9a - 1.2

3 0
2 years ago
Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22. (Past studies have revealed that onl
Alex17521 [72]

Answer:

B. no, it is not low enough

A. no, it is not low enough

Step-by-step explanation:

Given that Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22.

Prob for  a random person booked arrive for flight = 0.86

No of persons who books and arrive for flight, X is binomial, since there are two outcomes and each person is independent of the other

The probability that if Air-USA books 24 persons, not enough seats will be available

= P(X=23)+P(x=24)

= 0.1315

B. no, it is not low enough

-------------------------------

The prob we got is >10% also

A. no, it is not low enough

7 0
3 years ago
What is the coefficient in the expression 10x + 8 I need help
koban [17]

Answer:

10

Step-by-step explanation:

A coefficient is a multiplicative factor. Whatever is in front of the variable is a coefficient

5 0
3 years ago
Other questions:
  • Tammy takes a taxi home from the airport. The taxi fare is $2.10 per mile, And she gives the driver a tip of five dollars. Tammy
    5·1 answer
  • Does 3x-y=-7 pass through the points (-3,-2) and (1,10) ?
    7·2 answers
  • Different shapes are drawn on cards and then the cards are placed in a bag.
    14·1 answer
  • What is the reason for the fourth and eight steps in the proof?
    10·1 answer
  • What is the completely factored form of 100^2-16
    14·1 answer
  • A hockey coach recorded the number of shots taken by the home team and the number taken by the visiting team in 20 games,
    7·1 answer
  • What are the zeros of the function?
    10·1 answer
  • Please answer I would really appreciate! These are together btw!!!!!!
    5·2 answers
  • Cara uses nylon cord to make necklaces. Each necklace requires 18.75 inches of cord. Cara has 281.25 inches of the cord on hand.
    11·1 answer
  • What is the equation of the line?<br> I’LL GIVE BRAINLIEST
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!