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Author Question: Develop a realistic example of a pair of random variables for which you would expect to find ... (Read 161 times)

Redwolflake15

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on: Jun 24, 2018
Develop a realistic example of a pair of random variables for which you would expect to find negative covariance.
 
  What will be an ideal response?

Question 2

What is the probability that the man doesn't work?
 
  What will be an ideal response?


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asdfghjkl;

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

Price of cars and number of cars sold

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


Redwolflake15

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Reply 2 on: Jun 24, 2018
Excellent

emsimon14

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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