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2 years ago

QUESTION

Mathematics

2 answers:

miss Akunina [59]2 years ago

8 0

Answer:

$\frac{1}{3600}$

Step-by-step explanation:

400^2 = 160,000

5 2/6 = 32/6 = 16/3

6 70/30 = 250/30 = 25/3

16/3 * 25/3 = 400/9

400/9 / 160,000 = 1/3600

ehidna [41]2 years ago

3 0

The answer should be around 2.778 when the equation is inputted into a calculator.

To visualize in the form of improper fractions:

5 2/3 = 32/6
6 70/30 = 250/30
32/6 * 250/30 / (400)^2 = 2.778

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Answer:

See Explanation

Step-by-step explanation:

Given

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Required

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-----------------------------------------------------------------------------------------------------

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2 years ago

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zhenek [66]

Answer:

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And replacing we got:

$s= 0.286$

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Step-by-step explanation:

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We can assume that the distribution for the sample mean is given by:

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$SE= \frac{\sigma}{\sqrt{n}}$

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And replacing we got:

$s= 0.286$

And then the estimator for the standard error is given by:

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3 years ago