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NeX [460]
3 years ago
12

Consider the probability distribution of a random variable x. Is the expected value of the distribution necessarily one of the p

ossible values of x?
Yes. The expected value can never be a value from the exact value of x.
No. The expected value can be a value different from the exact value of x.
No. The expected value will never be one of its possible values of x.
Yes. The expected value must always be one of its possible values of x.
Explain or give an example.
Mathematics
1 answer:
pav-90 [236]3 years ago
8 0

Answer:

yes . The Expected value must always be one of its possible values of x

Step-by-step explanation:

<u>For example</u> :-

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PLEASE HELP!! <br><br> Find the domain of the graphed function.
aev [14]

Answer:

A

Step-by-step explanation:

The domain is the span of x-values a graph covers.

From the graph, we can see that the graph only covers the x-values less than or equal to 0. Our x-values never cross and go beyond x=0.

Therefore, our domain is all values less than or equal to 0.

As an inequality, this is:

x\leq 0

So, our answer is A.

And we're done!

6 0
4 years ago
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zheka24 [161]

Answer:

Step-by-step explanation:

When A and B are brought together then they repel i.e. A and B have same charge, either negative or positive

When B and C are brought together then they also repel. This implies that nature of charge on  B and C is same          

4 0
3 years ago
A pyramid has a square base with edges that measure 6 meters, and a slant height of 7.5 meters. What is its surface area?
slava [35]

The area of base:

B=6^2=36\ m^2

The area of one side:

S=\dfrac{1}{2}\cdot6\cdot7.5=22.5\ m^2

The surface area:

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3 0
3 years ago
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How tall is tent at the peaking of the opening with the bottom being 8 feet in each side being 10 feet
irakobra [83]
A= bh divide by 2 so you'll multiply 10x8 the product would be 80 and so you divide 80 by 2 and get 40 as your result.
6 0
3 years ago
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Hitman42 [59]
Okay to start this out. You started hiking at 1 P.M. You are at an elevation of 6000 ft. At 5 PM You are at an elevation of 4800 feet. 6000 feet - 4800 feet = 1200 feet in 4 hours.
Make a ratio 4(Hr):1200 Ft
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So at the end of the equation your hourly change is -300 ft, because the elevation is going down.

8 0
4 years ago
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