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Olin [163]
3 years ago
8

Death Valley in California is approximately 250 feet below sea level. Which of the following best describes the location of Deat

h Valley as it relates to sea level?
1.) +250ft
2.) 0ft
3.) -250ft
4.) +2500

I personally think the question is +250
Mathematics
2 answers:
forsale [732]3 years ago
8 0
+250 I am happy to help you
vodka [1.7K]3 years ago
4 0
No it is not +250ft because that would mean that Death Valley in California is 250 feet above sea level. So It is -250ft because it is 250 feet below sea level.

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find the approximate area of the shaded region below, consisting of a right triangle with a circle cut out of it. Use 3.14 as an
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4. A<br> is an algebraic expression made by<br> adding or subtracting terms.
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Which of the following is NOT true of a perpendicular bisector?
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<h3>What is a perpendicular bisector?</h3>

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The length of the human pregnancy is not fixed. It is known that it varies according to a distribution which is roughly normal,
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Answer:

a) Figure attached

b) P(234

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(234

And we can find this probability with this difference:

P(-2

An we know using the graph in part a that this area correspond to 0.95 or 95%

c) P(250

And we can find this probability with this difference:

P(-1

An we know using the graph in part a that this area correspond to 0.95 or 34+34+13.5+2.35%=83.85%

d) P(X

And using the z score we got:

P(X

And that correspond to approximately 0.15%

Step-by-step explanation:

Part a

For this case we can see the figure attached.

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part b

Let X the random variable that represent the length of human pregnancy of a population, and for this case we know that:

Where \mu=266 and \sigma=16

We are interested on this probability

P(234

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(234

And we can find this probability with this difference:

P(-2

An we know using the graph in part a that this area correspond to 0.95 or 95%

Part c

P(250

And we can find this probability with this difference:

P(-1

An we know using the graph in part a that this area correspond to 0.95 or 34+34+13.5+2.35%=83.85%

Part d

We want this probability:

P(X

And using the z score we got:

P(X

And that correspond to approximately 0.15%

5 0
3 years ago
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