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riadik2000 [5.3K]
2 years ago
7

Help me please !!!!!!!!!!!

Mathematics
1 answer:
Ymorist [56]2 years ago
7 0

Answer:

Step-by-step explanation:

first choice

1/8 x +1/8 x =2/8=1/4 x

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Please please help!!!! According to the probability distribution below, what is the expected value of X? X 0 1 2 3 4 5 P(X) 0.3
Novay_Z [31]

Answer:

D.) The expected value is 1.78

Step-by-step explanation:

The expected value of a probability distribution is evaluated using the formula.

Expected Value, E(X)=\sum^{n}_{i=1}x_iP(x_i)

Therefore, from the given probability distribution, we have:

E(X)=(0*0.3)+(1*0.2)+(2*0.16)+(3*0.2)+(4*0.04)+(5*0.1)

E(X)=1.78

The Expected value of X is 1.78.

The correct option is D.

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3 years ago
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vodka [1.7K]

Answer negative 9 is the answer

Step-by-step explanation:

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3 years ago
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Answer:

B

Step-by-step explanation:

That was actually trickier than I thought it would be

I was looking for 4(x-4),   but 4(x-2)(x+2) also works

7 0
3 years ago
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Please answer this, thanks.
elena55 [62]
First, put it into point-slope form. 

Find the slope:

m=(y2-y1)/(x2-x1)
m=(-6-(-2)/(2-1)
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m=-4

Now, put it into point-slope:

y-y1=m(x-x1)

y-2=-4(x-(-6)
y-2=-4(x+6)
y-2=-4x-24

Slope intercept form: y= mx+b

Add 2 to the other side.

y=-4x-22 <== the answer

I hope this helps!
~kaikers
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Answer: use desmos graphing calculator

Step-by-step explanation:

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3 years ago
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