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NNADVOKAT [17]
3 years ago
7

Could u answer all and explain it to me?

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0
I got the same book with those same answers ima bout to get it ok

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Add these fractions 5/7 + 2/7 is it to 3 or
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Answer:

1

Step-by-step explanation:

5/7+2/7 add the numerator to equal 7/7 simplify to 1/1 equals 1

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D is 13. What is the length of the line.
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Step-by-step explanation:

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What is 3.242424... as a mixed number
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The answer to the question is 3 8/33
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Researchers working the mean weight of a random sample of 800 carry-on bags to e the airline. Which of the following best descri
Sphinxa [80]

Answer:

(E) The bias will decrease and the variance will decrease.

Step-by-step explanation:

Given that researchers working the mean weight of a random sample of 800 carry-on bags to e the airline.

We have to find out the effect of increasing the sample size on variance and bias.

We know as per central limit theorem, sample mean follows a normal distribution with mean = sample mean

and std deviation of sample mean = std error = \frac{std dev}{\sqrt{n} }

Thus std error the square root of variance is inversely proportional to the square root of sample size.

Also whenever we increase sample size the chances of bias would decrease as the sample size becomes larger

So correct answer is both bias and variation will decrease.

(E) The bias will decrease and the variance will decrease.

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Solve:<br> -8(x - 3) - 4x &lt; 108
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Step-by-step explanation:-8x+24-4x<108

108-24

-12x<84

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