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Author Question: True or False: The expected value of a discrete probability distribution may be negative. A) True ... (Read 55 times)

Deast7027

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on: Jul 24, 2018
True or False: The expected value of a discrete probability distribution may be negative.
 
  A) True B) False

Question 2

If nothing is known about the shape of a distribution, what percentage of the observations fall within 2 standard deviations of the mean?
 
  A) at least 75 B) at most 25
  C) approximately 95 D) approximately 5


ASDFGJLO

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Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


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Deast7027

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Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


ASDFGJLO

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Reply #3 on: Jul 24, 2018
Great! Please up vote :D


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