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butalik [34]
2 years ago
14

Which of the following is the most likely scientific explanation for why so many people report improvement after wearing this je

welry
A. Some people may be experiencing the placebo effect

B. Some people will say whatever the company pays them to say

C. The ions in the jewelry change the electric field around the body, improving blood flow

D. The ions in the jewelry improve energy flow through the body
Advanced Placement (AP)
2 answers:
umka21 [38]2 years ago
7 0

The best scientific explanation for why many people report improvement after wearing a certain jewelry is explained in option (A) some people may be experiencing the placebo effect.

The placebo effect occurs <em>when people report that they are experiencing physiological or psychological changes due to a product that they use even though the product actually doesn’t contain properties that should create these changes.</em> The placebo in this situation is the jewelry.

Helga [31]2 years ago
6 0
It is probably A. It's like when I take melatonin before bed - doctors say to take it like 4 hours before bed but I take it 1 hour before I fall asleep and it works lol
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MAVERICK [17]
A is the correct answer
8 0
2 years ago
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The average yearly snowfall in Chillyville is Normally distributed with a mean of 55 inches. If the snowfall
GuDViN [60]

Answer:

The standard deviation is 4.83 inches.

Explanation:

We are given that the average yearly snowfall in Chillyville is Normally distributed with a mean of 55 inches.  

The snowfall  in Chillyville exceeds 60 inches in 15% of the years, we have to find the standard deviation.

Let X = <u><em>the average yearly snowfall in Chillyville</em></u>.

The z-score probability distribution for the normal distribution is given by;

                                 Z = \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean amount of rainfall = 55 inches

            \sigma = standard deviation  

Now, it is stated that the snowfall  in Chillyville exceeds 60 inches in 15% of the years, that means;

        P(X > 60 inches) = 0.15

        P( \frac{X-\mu}{\sigma} > \frac{60-55}{\sigma} ) = 0.15

        P(Z > \frac{60-55}{\sigma} ) = 0.15

In the z table, the critical value of z that represents the top 15% of the area is given as  1.0364, that means;

                       \frac{60-55}{\sigma} = 1.0364

                       \sigma} = \frac{5}{1.0364} = 4.83 inches

Hence, the standard deviation is 4.83 inches.

7 0
2 years ago
When you view the pendulum’s swing, it shows that at the very top of the swing KE = 0. What does that tell you about the pendulu
shtirl [24]
The kinetic energy of an object is given by:
Kinetic energy = 1/2 * mass * velocity²
If the kinetic energy of the pendulum at the top of its swing is 0, then this tells us that the velocity of the pendulum at that point is 0. All of the kinetic energy is converted to potential energy, and the pendulum starts moving in the opposite direction after this point in time.
6 0
2 years ago
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Match each economic activity with the correct economic term.
Mamont248 [21]

<span>Correct matches

</span>

<span>receiving $5 for washing your father’s car (incentive)

leakage in the US economy (a person in the United States purchasing a car made in Germany)

paying part of your income to the government (taxation)

injection in the US economy (a person in China purchasing an
American mobile phone)

</span>

$5 is an incentive because it motivates.

<span>
</span>Tax is a proportion of income paid to the government in a progressive rate. (

When a person in the US buy outside, he reduces the flow of income (leakage).When someone buys inside he introduces an income (injection in the economy).  <span>


</span>

5 0
2 years ago
Juan and Wanda both make pancakes and bacon. If we compare the opportunity costs and possible gains from trade for Juan and Wand
Rudik [331]

Answer:

Comparing the opportunity cost and possible gains for both Juan and Wanda helps to determine which party should produce Pancakes and who should produce Bacon.

In other words, it reveals where their comparative advantages lie.

The party with the lowest opportunity cost in a particular product has the highest Comparative Advantage.

Explanation:

If for instance, the ratios give off Juan as having the highest opportunity cost in the production of Pancakes, when compared with Bacon and Wanda has the highest opportunity cost in the production of Bacon when compared to pancakes then Juan should focus on producing Bacon and Wanda Pancakes whilst they trade with each other for the other product where their comparative advantage is lowest.

Cheers!

5 0
2 years ago
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