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I am Lyosha [343]
2 years ago
9

To test an herbal treatment for depression, 100 volunteers who suffered from mild depression were randomly divided into two grou

ps. Each person was given a month's supply of tea bags. For one group, the tea contained the herb mixed with spice tea, whereas for the other group, the bags contained only the spice tea. Participants were not told which type of tea they had, and were asked to drink one cup of tea per day for a month. At the end of the month, a psychologist evaluated them to determine if their mood had improved. The psychologist did not know which of the subjects had the tea with the herbal ingredient added.
Which is true regarding this study?

This study is an observational study.
This study is double-blind.
The "only spice tea" group serves as the control group.
All of the above are true.
Both (B) and (C) are true.
Mathematics
1 answer:
DedPeter [7]2 years ago
6 0

Answer:

Both (b) and (C) are true.

This study is double blind and the "only spice tea" group serves as the control group.

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4 questions 50 points
MAXImum [283]
I hope this helps you

8 0
3 years ago
Whoever answers first gets the brainliest Given : f(x)=-|x+9|
Mamont248 [21]

Answer:

See below.

Step-by-step explanation:

f(x) = -|x + 9|

compared to

f(x) = |x|

has a graph that opens downward in an upside down V shape.

It has been moved 9 units left compared to the graph of f(x) = |x|.

It reflects over the x-axis.

6 0
3 years ago
What is an equation of the line that passes through the points (4,-5) and (-2,7)
Korvikt [17]

Answer:

y = -2x + 3

Step-by-step explanation:

y2 - y1/ x2 - x1

7 - (-5) / -2 - 4

-2

The slope is -2.

To find the y-intercept, you need to plug the coordinates into the equation.

y = -2x + b

7 = -2(-2) + b

7 = 4 + b

3 = b

y = -2x + 3

5 0
2 years ago
Round to the nearest hundredth 2.815
LenaWriter [7]
2.82 is the answer, ...
8 0
3 years ago
PLEASEEEEEEEE HELP ME I NEED TO TURN THIS IN
Aloiza [94]

Answer:

102 degrees

Step-by-step explanation:

Since the two angles are same side interior that would mean they sum up to 180 degrees.

180-78=102 degrees

hoped this helped :)

4 0
2 years ago
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