2 years ago

Divide a quantity into two parts in a given ratio.

Mathematics

1 answer:

True [87]2 years ago

3 0

You would just divide that quantity by 2.

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Given:
Sample proportion = 85% = 0.85.
Confidence level (CL) = 90%.
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We want the confidence interval to be 5% or 0.05. Therefore
$0.85 - 1.645 \sqrt{ \frac{0.85(1-0.85)}{n} }=0.05 \\ 0.85 - \frac{0.5874}{ \sqrt{n} } =0.05 \\ \frac{0.5874}{ \sqrt{n} }=0.8 \\ \sqrt{n} = .7342 \\ n=0.54$

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3 years ago

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elixir [45]

The sum of probability for an event happening and not happening must be equal to 1 because there is a 100% chance that one or the other will occur.

So the probability on not drawing a quarter:

P(!Q)=1-4/5

P(!Q)=5/5-4/5

P(!Q)=1/5

As a percentage:

p/100=1/5

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3 years ago

Please help me out !!!!

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Answer is A) -1 because it they are parallel then they have the same slope. If the green line has a -1 slope so does the red line

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The answer is 14.50. Hope that helped

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