True or False: The expected value of a discrete probability distribution may be negative. A) True ...

Author Question: True or False: The expected value of a discrete probability distribution may be negative. A) True ... (Read 90 times)

Deast7027

Hero Member
Posts: 538

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

Sr. Member
Posts: 335

Reply #1 on: Jul 24, 2018

Answer to Question 1

A

Answer to Question 2

A

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Deast7027

Hero Member
Posts: 538

Reply #2 on: Jul 24, 2018

Both answers were spot on, thank you once again

ASDFGJLO

Sr. Member
Posts: 335

Reply #3 on: Jul 24, 2018

Great! Please up vote

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