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3 years ago

14

Whats the decimal that is equivalent to 3/11

2 answers:

masya89 [10]3 years ago

4 0

3 divided by 11 = 0.273

0.273 is your rounded answer

hope this helps

pantera1 [17]3 years ago

4 0

The answer is 0.27

3/11 = 0.27

I hope this helps

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OlgaM077 [116]

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(distribute the 6)

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(combine like terms 25 - 48)

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a = - 9.5

////CHECK/////

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(plug each side into a calculator)

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2 years ago

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3 years ago

Read 2 more answers

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scoray [572]

Answer:

a. n=4148

b. n=3909

c. The sample size is smaller if a known proportion from prior study is used. The difference in sample sizes is 239

Step-by-step explanation:

a. For sample where no preliminary estimate is given, the minimum sample size is calculated using the formula:

$n=p(1-p)(\frac{z}{ME})^2$

Where:

$ME=$ Margin of error
$p=$ is the assumed proportion

#Let p=0.5, substitute in the formula to solve for n:

$n=0.5(1-0.5)\times (2.576/0.02)^2\\\\=4147.36\approx 4148$

Hence, the minimum sample size is 4148

b. If given a preliminary estimate p=0.38, we use the same formula but substitute p with the given value:

$n=p(1-p)(z/ME)^2\\\\=0.38(1-0.38)(2.576/0.02)^2\\\\=3908.47\approx3909$

Hence, the minimum sample size is 3909

c. Comparing the sample sizes from a and b:

$n_{0.5}>n_{0.38}\\\\n_{0.5}-n_{0.38}=4148-3909=239$

Hence, the actual sample size is smaller for a known proportion from prior a prior study.

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3 years ago