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3 years ago

Which correlation coefficient best matches the graph?

Mathematics

1 answer:

Paha777 [63]3 years ago

4 0

Answer: try C although, I’m not 100% sure, I haven’t done this in a while. Just try C.

Step-by-step explanation: I feel the same way about the homework. I’m always stressed out.

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Two resistors, with resistances R1 and R2, are connected in series. R1 is normally distributed with mean 100 ohms and standard d

puteri [66]

Answer:

The probability that R2 is bigger than R1 is P=0.9633.

Step-by-step explanation:

We need to compute the probability that R2 is bigger than R1:

$P(R_2>R_1)$

To do this, we define a new variable Das the difference between the two resistances:

$D=R_2-R_1$

Then,

$P(R_2>R_1)=P(R_2-R_1>0)=P(D>0)$

As R1 and R2 are normal random variables, the properties of D are:

$\mu_D=\mu_{R2}-\mu_{R1}=120-100=20\\\\\sigma_D=\sqrt{\sigma_{R2}^2+\sigma_{R1}^2}=\sqrt{10^2+5^2}=\sqrt{100+25}=\sqrt{125}=11.18$

Then, we can calculate the z-value for D=0

$z=\frac{x-\mu}{\sigma} =\frac{0-20}{11.18}=\frac{-20}{11.18}= -1.79$

$P(D>0)=P(z>-1.79)=0.9633$

8 0

3 years ago

What is the answer to -7(-6)

Naddika [18.5K]

Answer:

Step-by-step explanation:

Hope this helps and have a great day! :)

5 0

3 years ago

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What is the GCF of 30 and 15? A. 15 B. 5 C. 30 D. 75

tigry1 [53]

30. Hope this helps.

8 0

3 years ago

(x - 2)(8x + 3) find the product

Aliun [14]

The Answer: 8x^2-13x-6

8 0

4 years ago

Help please (give the right answer!!

allsm [11]

Answer:

multiply by 4 then its 48/100 then I think its 48 percent

Step-by-step explanation:

multiply 4 to get 48 multiplying 12 by 4 and then 48 % because it is 48 of 100 :)

3 0

3 years ago

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