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Furkat [3]
3 years ago
9

Which is the closest star to earth?

Advanced Placement (AP)
2 answers:
miv72 [106K]3 years ago
7 0

Answer:

4

Explanation:

Proxima Centauri is about 4.22 light-years from Earth and is the closest star other then the sun

Rasek [7]3 years ago
5 0

Answer:

Sol (92.96 million miles, or 0.00001581 light years away)

Explanation:

1. Mars isn't a star

2. Sun (or Sol) is 92.96 million miles away from Earth.

3. Aldebaran is 65.23 light years away from Earth.

4. Proxima Centauri is 4.243 light years away from earth.

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The probability that the proportion of patients who wait less than 30 minutes is 0.582 or less is 0.0020

<h3>What is probability? </h3>

Probability can be defined as the likelihood of an event to occur. In statistics, the mean of the sample distribution typically shows the probability of the population.

From the parameters given:

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The sample proportion \mathbf{\hat p} can be computed by using the expression:

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\mathbf{\hat p = \dfrac{32}{55}}

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If the percentage of the probability of all patients in the emergency room = 0.75

The probability that the proportion of patients who wait less than 30 minutes is 0.582 or less can be computed as:

\mathbf{( \hat P \leq 0.582) = P \Big( \dfrac{\hat p - p}{\sqrt{\dfrac{p(1-p)}{n}}} \leq \dfrac{0.582 - 0.75}{\sqrt{\dfrac{0.75(1-0.75)}{55}}} \Big )}

\mathbf{( \hat P \leq 0.582 )= P \Big( Z \leq \dfrac{-0.168}{\sqrt{0.003409}} \Big )}

\mathbf{( \hat P \leq 0.582) = P \Big( Z \leq -2.88 \Big )}

From the Z distribution table:

\mathbf{( \hat P \leq 0.582) = 0.00198}

\mathbf{( \hat P \leq 0.582) \simeq 0.0020}

Learn more about probability here:

brainly.com/question/24756209

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