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olga nikolaevna [1]
4 years ago
15

Explain why surface area-to-volume ratios are important in affecting a biological system’s ability to obtain necessary resources

or eliminate waste products.
Advanced Placement (AP)
1 answer:
Tasya [4]4 years ago
8 0

These ratios are super important for communication between cells, getting things into cells, getting rid of waste and pretty much all functions of a cell. Think about some dough. If it is in a ball, it will be pretty hard to get something to all of its parts. Now if this dough is rolled out into a sheet, whatever we are trying to get to the rest of the dough can be easily added to all of it.

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Explanation:

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If the wait time is less than 30 minutes for 75% of all patients in the emergency room, what is the probability that the
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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:

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