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3 years ago

What is the slope of the two points below? (9,-27) and (4,-12)

Mathematics

1 answer:

kirill115 [55]3 years ago

7 0

Step-by-step explanation:

-3 is the slope of the two points

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A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?

VladimirAG [237]

Answer:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

$\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error would be:

$\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}$

And replacing we got:

$\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611$

Step-by-step explanation:

For this case we know the population deviation given by:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

$\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error would be:

$\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}$

And replacing we got:

$\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611$

4 0

3 years ago

PLEASE HELP ME I HATE MATH.

dsp73

Answer:

BBBBBBBBBB

Step-by-step explanation:

1/4 mile per 22.5 seconds

7 0

3 years ago

\left(x+3,\ y-6\right).

erastovalidia [21]

Say left is your mom and that would mean the answer would be 38922938829

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2 years ago

Which line is a linear model for the data?

DochEvi [55]

Answer:

Bottom Left Choice

Step-by-step explanation:

If you look at the points, they are traveling up and to the right. So is the line in the graph. Also, the line in the graph is closer to more dots than the others.

5 0

2 years ago

Read 2 more answers

I need help please and thanks

lakkis [162]

Answer:

the answer is associative

Step-by-step explanation:

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3 years ago