3 years ago

What do I plug into a calculator to find 431 increased by 16%?

2 answers:

7 0

The answer is B

This is the answer because you are multiplying 431 by 1 (or 100%) to find your total without the 16% added, then you are figuring out the last 16% added onto figure out your total value.

stich3 [128]3 years ago

3 0

D is the answer I took the test

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skelet666 [1.2K]

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Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili

3241004551 [841]

Answer:

$P(p>0.43) = 0.0436$

Step-by-step explanation:

Given

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Required

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First, calculate the z score using:

$Z = \frac{\^{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

This gives:

$Z = \frac{48\%-40\%}{\sqrt{\frac{40\% *(1 - 40\%)}{781}}}$

Convert % to decimal

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$Z = \frac{0.43-0.40}{\sqrt{\frac{0.24}{781}}}$

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So:

$P(p>0.43) = P(Z>1.71)$

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