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
ss7ja [257]
3 years ago
9

A drug researcher decides to test a new arthritis pain medication for safety and effectiveness on a treatment group of 100 sever

ely disabled arthritis sufferers in a hospital ward. Everyone in the group is assigned a number. Patients with an even number receive the drug. Patients with an odd number receive a placebo.
Which of the following principles of experimental design are being followed?

Check all that apply.

A. Replication
B. Blindness
C. Blocking
D. Randomization
E. Lurking
Mathematics
1 answer:
MrMuchimi3 years ago
7 0

Answer:

For apex it is randomization and blindness.

Step-by-step explanation:

There was some debate in some comments but I decided to go with the one that said this is the answer for apex. I just took the test and got it

You might be interested in
Order the amount of rain from least to greatest
babymother [125]

Answer:

1/5, 1/2, 3/4

Step-by-step explanation:

I just now this already from experience, but you could covert all of the fractions into a common denominator. For example use 20.

1/5 = 4/20

1/2 = 10/20

3/4 = 15/20

Then you just need to look at the numerators which 4,10,15 would be the order. And then make sure to convert to the original fractions making the final order be 1/5, 1/2, 3/4.

8 0
3 years ago
-3.1x+7-7.4x-1.5x-6(x-3/2
nalin [4]

Answer:

-2(9x-8)

Step-by-step explanation:

We are to simplify the expression -3.1x+7-7.4x-1.5x-6(x-3/2)

Open the parenthesis

-3.1x+7-7.4x-1.5x-6(x-3/2)

= -3.1x+7-7.4x-1.5x-6x+6(3/2)

= -3.1x+7-7.4x-1.5x-6x+9

Collect like terms

= -3.1x-7.4x-1.5x-6x+7+9

= -12x-6x+16

= -18x+16

= -2(9x-8)

Hence the simplified form of the expression is -2(9x-8)

6 0
3 years ago
In a topographical map of a city, the vertices of the city limits are A(10,9),B(18,9),C(18,2),D(14,4.5),E(10,4.5). The coordinat
Kipish [7]

Answer:

  41 square miles

Step-by-step explanation:

There are several ways you can compute the area of this polygon. We have elected to divide it into a rectangle and a triangle.

The rectangle has dimensions 8 × 4.5, so area ...

  A = LW = 8 × 4.5 = 36 . . . . . square miles

The triangle has height 2.5 and base 4, so area ...

  A = (1/2)bh = (1/2)(4)(2.5) = 5 . . . . . square miles

Then the total area is the sum of these:

  36 + 5 = 41 . . . . . square miles

4 0
4 years ago
Help Fast I’m Struggling In Picture
Brilliant_brown [7]

Answer:

4/5

Step-by-step explanation:

sohcahtoa meaning sin is opposite over hypotenuse

8 0
3 years ago
Washington Elementary has 232 students Washington High has six times as many students how many students does Washington High hav
zaharov [31]
232x6=1392
Washington High has 1,392 students
It’s just basic multiplication
7 0
3 years ago
Other questions:
  • The length of a rectangle is represented by x+3 and the width by 2x-4. Write an expression for the area of this rectangle
    15·1 answer
  • Provide an example of an isolated energy system and explain how it could be changed to create an open energy system. You may use
    12·1 answer
  • How do you order this least to greatest
    14·2 answers
  • 26. Tony collected $1072.61 from 49 customers
    12·1 answer
  • HELP ME WITH THIS ILL MAEK U THE BRAINLIEST
    12·2 answers
  • What is the radius of the sphere
    7·1 answer
  • A wire 4 1/2 feet long is being cut into smaller pieces of wire, each 11/4 feet long. What is the maximum number of the smaller
    15·1 answer
  • Examine the system of equations.
    14·1 answer
  • What is the value of X?​
    15·2 answers
  • Internet prices for glasses are often considerably lower than those at the brick and mortar stores but quality is another questi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!