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ohaa [14]
2 years ago
11

since a placebo has no actual medical or physiological benefits, why does it sometimes seem to affect study participants​

Advanced Placement (AP)
1 answer:
BARSIC [14]2 years ago
7 0

Answer: The placebo effect

Explanation: The placebo effect is defined as a phenomenon in which some people experience a benefit after the administration of an inactive substance or sham treatment. What exactly is a placebo? A placebo is a substance with no known medical effects, such as sterile water, saline solution, or a sugar pill.

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5 0
2 years ago
A random variable X has a mean of 10 and a standard deviation of 3. If each value of X is multiplied by 2, what will the new mea
garri49 [273]

Finding the new mean is simple: If E[X]=10, then E[2X]=2E[X]=20.

Meanwhile, the standard deviation is the square root of the variance, which is given by

V[X]=E[X^2]-E[X]^2\implies V[2X]=E[(2X)^2]-E[2X]^2=4E[X^2]-(2E[X])^2

\implies V[2X]=4\underbrace{\left(E[X^2]-E[X]^2\right)}_{V[X]}=12

and so the new standard deviation would be \sqrt{V[2X]}=\sqrt{12}=2\sqrt3.

5 0
3 years ago
Question 6 (True/False Worth 6 points)
morpeh [17]
I think it’s true I’m so sorry if I get it wrong
7 0
2 years ago
What is data backup ? why is it required? Write about online backup ??​
Ganezh [65]

Answer:

Hey mate.....

Explanation:

This is ur answer....

<em>Data backup is the practice of copying data from a primary to a secondary location, to protect it in case of a disaster, accident or malicious action. Data is the lifeblood of modern organizations, and losing data can cause massive damage and disrupt business operations.</em>

<em>The purpose of the backup is to create a copy of data that can be recovered in the event of a primary data failure. Primary data failures can be the result of hardware or software failure, data corruption, or a human-caused event, such as a malicious attack (virus or malware), or accidental deletion of data.</em>

<em>An online backup is when your data is copied to an “off-site' or cloud storage solution. Services will consistently and securely store copies of your data to the cloud, so your data is accessible anytime you get online. An online backup is an integral part of a business' disaster recovery plan.</em>

Hope it helps!

Brainliest pls!

Follow me! ♧

4 0
2 years ago
Read 2 more answers
God is___and slow to anger.
tester [92]
Forgiving ___________
6 0
3 years ago
Read 2 more answers
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