2 years ago

Can u show me some division fractions

1 answer:

5 0

Do you mean like simple division fractions? For example what is 2/3 divided by 1/5 or 3/2 divided by 4/9 if you could be more specific.

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A simple random sample of 64 observations was taken from a large population. The population standard deviation is 120. The sampl

jeka94

Answer:

<h3>The standard error of the mean is <u>15</u></h3>

Step-by-step explanation:

Given that a simple random sample of 64 observations was taken from a large population.

Hence it can be written as n=64

The population standard deviation is 120.

It can be written as $\sigma_{\overline{X}}=120$

The sample mean was determined to be 320.

It can be written as $\overline{X}=\mu =320$

<h3>To find the standard error of the mean :</h3>

The formula for the standard error of the mean is given by

$\sigma_{\overline{X}}=\frac{\sigma}{\sqrt{n}}$

Now substitute the values in the formula we get

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2 years ago

Alma walks around her neighborhood according to the path below. in total, she walks 50 blocks.

Bas_tet [7]

Answer:

Hey there!

The equation is x+2x+5+6x-17+3x+2, or 12x-10

12x-10=50

12x=60

x=5

Let me know if this helps :)

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