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Author Question: If P(A ) = 0.35 and P(B ) = 0.65, then A and B must be mutually exclusive. Indicate whether the ... (Read 110 times)

chandani

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If P(A ) = 0.35 and P(B ) = 0.65, then A and B must be mutually exclusive.
 
  Indicate whether the statement is true or false

Question 2

Approximately what proportion of the observations is less than 548?
 
  What will be an ideal response?



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Bison

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Answer to Question 1

FALSE

Answer to Question 2

The value 548 is two standard deviations above the mean; hence the Empirical Rule implies that the area between the mean and 548 is approximately 0.95 / 2 = 0.475. Therefore the proportion of the observations less than 548 is approximately 0.975.




chandani

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)


Dinolord

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Reply 3 on: Yesterday
Wow, this really help

 

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