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Alona [7]
3 years ago
9

Write an equation in point-slope form for each line. (If possible please show work)

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
6 0

Answer:

so

slope is calculated this way:

\frac{3 - 6}{2 - 1}  =  \frac{ - 3}{1}  =  - 3

let's calculate y init by:

3 = -3×2 + b

b = 9

so equation is:

y=-3x+9

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Answer:

a. For n=25, the mean and standard deviation of the prices of the mobile homes all possible sample mean prices are ​$63,800 and ​$1,580​, respectively.

b. For n=50, the mean and standard deviation of the prices of the mobile homes all possible sample mean prices are ​$63,800 and ​$1,117​, respectively.

Step-by-step explanation:

In this case, for each sample size, we have a sampling distribution (a distribution for the population of sample means), with the following parameters:

\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{n}

For n=25 we have:

\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{25}=7,900/5=1,580

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\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{50}=7,900/7.07=1,117

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