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Thepotemich [5.8K]
3 years ago
15

Solve for x please help!!!

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0
X=13 i believe!! hope it helps <3
Fofino [41]3 years ago
5 0
2x+6=32
2x=26
x=13 degrees
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What is the least number of congruency statements needed to be stated in a triangle congruency proof to prove triangles are cong
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rodikova [14]

Answer:

E(X) = 4*0.2 +3*0.5+ 2*0.2 +1*0.8+ 0*0.02= 2.78

So then the best answer for this case would be:

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Step-by-step explanation:

For this case we have the following probabability distribution function given:

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A= 4.0       0.2

B= 3.0       0.5

C= 2.0       0.2

D= 1.0        0.08

F= 0.0       0.02

______________

Total          1.00

The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.

If we use the definition of expected value given by:

E(X) = \sum_{i=1}^n X_i P(X_I)

And if we replace the values that we have we got:

E(X) = 4*0.2 +3*0.5+ 2*0.2 +1*0.8+ 0*0.02= 2.78

So then the best answer for this case would be:

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3 years ago
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