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Author Question: The area to the right of z = 1.52 is 0.4357 Indicate whether the statement is true or ... (Read 16 times)

karlynnae

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on: Jul 24, 2018
The area to the right of z = 1.52 is 0.4357
  Indicate whether the statement is true or false

Question 2

Suppose that A and B are two events defined on a common sample space and that the following probabilities are known: P(A) = 0.4, P(B) = 0.3, and P(B  A) = 0.2 . Find P(A or B).


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tuwy

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

F

Answer to Question 2

Since P(A and B) = P(A) P(B  A) = (0.4)(0.2) = 0.08, then P(A or B) = P(A) + P(B)  P(A and B) = 0.4 + 0.3  0.08 = 0.62.


karlynnae

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Reply 2 on: Jul 24, 2018
Wow, this really help

nothere

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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