2 years ago

What is the length of line segment AD?

Mathematics

1 answer:

Mama L [17]2 years ago

3 0

Answer:

Step-by-step explanation:

Filho 4x:/3

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Step-by-step explanation: first multiply 342 and 135

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3 years ago

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3 years ago

. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al

Shtirlitz [24]

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900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

$E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }$

$n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2$

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, $Z_\frac{\alpha }{2}$ is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, $Z_\frac{\alpha }{2}$ = 3. Hence:

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3 years ago

Use a whole number, a fraction, one plus sign, and four 2's to make 23.

alexira [117]

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2 years ago

What is 1+2+3+4+5+6+7?

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Step-by-step explanation:

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