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kifflom [539]
2 years ago
13

Pls, help due in 10 mins! Pls, answer both questions!

Mathematics
1 answer:
vredina [299]2 years ago
5 0

Answer:

Answer for first question is 22 yards!

Step-by-step explanation:

I used to do this, you have to multiply. A way of helping, is to split it in half, then add it all together. Now, I am not always accurate but I hope this helps you!

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The correct answer is 4
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Sample size: A researcher is trying to decide how many people to survey. Which of the following sample sizes will result in a co
oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that a researcher is trying to decide how many people to survey.

We have confidence intervals are intervals with middle value as the mean and on either side margin of error.

Confidence interval = Mean ± Margin of error

Thus confidence interval width depends on margin of error.

Margin of error = Critical value *\frac{\sigma}{\sqrt{n} }

Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.

Hence for small n we get wide intervals.

So if sample size = 300, the researcher will get wider confidence interval

4 0
3 years ago
PLEASE HELP MEE RN! DUE IN 5 MINS SHOW YOUR WORK PLEASE
77julia77 [94]

Answer:

x = 0

y = -12

Step-by-step explanation:

Plug in what y is equal to into the second equation

-3(x - 12) = 2x + 36

Distribute the -3

-3x + 36 = 2x + 36

      -36           -36

-3x = 2x

They cannot be equal so x = 0

Plug in 0 into the y equation

y = 0 - 12

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5 0
2 years ago
PLZ HELP WILL GIVE BRAINLIST
Afina-wow [57]

Answer:

Option A

Step-by-step explanation:

The answer is option A "A number less than 2." That is because we check off each of the following given options. It won't be option C because they're 4 odd numbers a equal amount of multiplies of two (option D) which means they both have a equal (4 out of 8) chance. It won't be option B because they're 7 out of 8 numbers that are greater then on which means you have a greater chance of getting a number greater then one but the question is asking for the most unlikely.....therefore the answer is option A because you have a 1 out of 8 chance of getting a number less then two.

Hope this helps.

3 0
3 years ago
She has written 90 page essay so far she needs 150 pages. What percent of pages has she completed.​
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Answer:

75%

Step-by-step explanation:

i am not going to say it right but i think it is but my teacher have us doing this now

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3 years ago
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