Author Question: Develop a realistic example of a pair of random variables for which you would expect to find ... (Read 141 times)

Redwolflake15 · **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?

asdfghjkl; · **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