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Author Question: The mean and variance of any normal distribution are always zero and one, respectively. Indicate ... (Read 32 times)

stephzh

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on: Jun 24, 2018
The mean and variance of any normal distribution are always zero and one, respectively.
 
  Indicate whether the statement is true or false

Question 2

What is the probability that the man does work?
 
  What will be an ideal response?


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firehawk60

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

FALSE

Answer to Question 2

P(both man and woman are not working) = 1 - 0.88 = 0.12
P(woman doesn't work  man doesn't work) = 0.40
P(man does not work) = P(both man and woman are not working)/0.40
= 0.12 / 0.40 = 0.30
P(man works) = 1 - P(man doesn't work) = 1 - 0.30 = 0.70


stephzh

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Reply 2 on: Jun 24, 2018
Excellent

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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