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Mama L [17]
3 years ago
8

Placebos are used so that even the people who do not receive a treatment can benefit from the study. ? 2. Controlled experiments

can be randomized or nonrandomized. ? 3. A well-designed placebo allows an experiment to be conducted blind. ? 4. Placebos are used to randomly assign participants to treatment or control ? 5. Using a random chance procedure to assign subjects to treatment or control reduces bias ? 6. A placebo is used in all controlled experiments. ? 7. In a blind experiment, the subjects do not know whether they are in the treatment group or control group. ? 8. In an observational study, the investigators assign the subjects to treatment or control
Mathematics
1 answer:
Bess [88]3 years ago
5 0

Answer:

1. Placebos are used to randomly assign participants to treatment or control ?

False.

2. Using a random chance procedure to assign subjects to treatment or control reduces bias ?

True.

3. A well-designed placebo allows an experiment to be conducted blind. ?

False.

4. In an observational study, the investigators assign the subjects to treatment or control. ?

False.

5. In a blind experiment, the subjects do not know whether they are in the treatment group or control group. ?

True.

6. Placebos are used so that even the people who do not receive a treatment can benefit from the study. ?

True.

7. A placebo is used in all controlled experiments. ?

True.

8. Controlled experiments can be randomized or nonrandomized.

True.

Step-by-step explanation:

Placebos are not techniques for conducting experiments.  They are devices or drugs used when conducting a controlled study or research involving the administering of items to two different groups, such that one group gets the real item while the other group gets another item that is made to look like the real item without the participants knowing the difference. The purpose is to enable the results from the control group to be compared to the results of a treatment group. Randomization is the process used to assign subjects to treatment or control groups in order to reduce bias.

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2 3/6 boxes and 1 2/3 boxes were recycled what is the total
Liono4ka [1.6K]
Since you are recycling the boxes you will be subtracting 2 3/6 and 1 2/3 since you’re a denominators you’re not mad she have to find a common denominator which would be six. So you have to do 2/2 x 2/3 = 4/6. So then you would do 3/6 - 4/6 = 1/6. Then you would subtract 1-2=1. Then you would do 1 + 1/6 = 1 1/6

So the answer is 1 1/6.
I hope this helped
5 0
3 years ago
What is an equation in slope-intercept form of the line that passes through the points (−2, −2) and (1, 7)? A.y = 4x + 3 B.y − 7
antoniya [11.8K]

Answer:

C.y = 3x + 4

Step-by-step explanation:

We have two points, so we can find the slope

m = (y2-y1)/ (x2-x1)

   = (7--2)/ (1--2)

   = (7+2)/(1+2)

    = 9/3

    =3

The slope is 3

We can find the point slope form of the line

y-y1 = m(x-x1)

y-7 = 3(x-1)

Distribute

y-7 =3x-3

Add 7 to each side

y-7+7 = 3x-3+7

y = 3x+4

This is in slope intercept form (y=mx+b)

8 0
3 years ago
What is the angle of elevation?
ANEK [815]

Answer:

Step-by-step explanation:

tan x° = \frac{3}{4} ⇒<em> x°</em> ≈ 36.87° ≈ <em>36.9° </em>

4 0
3 years ago
35°<br> 50°<br> ?<br> Find the measure of the missing angle:
Marianna [84]

Answer:

i think the answer would be 95 degree. im not absolutley positive though

Step-by-step explanation:

i added 35 and 50 and got the sum of 85 then i subtracted 85 from 180 and got 95

feedback is appreciated.

(i'm not gonna beg for brainliest)

4 0
3 years ago
Explain the difference between common and preferred stock? List the advantages and disadvantages of each.
Arturiano [62]

Common Stock :

→Common stock is the most common type of stock that is issued by companies.

→ Have voting privileges, whereas holders of preferred stock may not.

→ Most common stock gives owner one vote per number of shares owned.

Preferred Stock :

→ Preferred stock is generally considered less volatile than common stock.

→ Preferred stockholders generally do not have voting rights.

Both common stock and preferred stock have their advantages.

When considering which type may be suitable for you, it is important to assess your financial situation, time frame, and investment goals.

7 0
3 years ago
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