The length of a human pregnancy is normally distributed with a mean of 272 days with a 7) standard deviation of 9 days (Bhat & Kushtagi, 2006). Find each: a) State the random variable. b) P(X< 266) c) P(X> 280) d) P(272

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Chapter1: Combinatorial Analysis
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I am wondering if the correct answer to 7a is finite discrete, infinite discrete, or continuous and why.

I am also wondering what the correct answer to 7d is and how you arrived at that answer.

Thank you, Joshua Cortigiano

The length of a human pregnancy is normally distributed with a mean of 272 days with a
7)
standard deviation of 9 days (Bhat & Kushtagi, 2006).
Find each:
a) State the random variable.
b) P(X< 266)
c) P(X> 280)
d) P(272 <x< 284) -
Transcribed Image Text:The length of a human pregnancy is normally distributed with a mean of 272 days with a 7) standard deviation of 9 days (Bhat & Kushtagi, 2006). Find each: a) State the random variable. b) P(X< 266) c) P(X> 280) d) P(272 <x< 284) -
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