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Studentka2010 [4]
3 years ago
5

The set of all first components of the ordered pairs is called the:

Mathematics
1 answer:
jasenka [17]3 years ago
7 0

9514 1404 393

Answer:

  domain

Step-by-step explanation:

An ordered pair is ...

  (element of domain, element of range)

Then the set of all "element of domain" is the <em>domain</em>.

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Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
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Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

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For x = 4171,  Z = (4171 - 3311)/860 = 1  

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Next, multiply that by the sample size of 732.

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  • For part b, use the same method except x is now 1591.    

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  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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