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Author Question: What is the standard deviation if a proportion of 0.094 is found from 25 samples each of size 200? ... (Read 38 times)

newyorker26

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on: Jun 24, 2018
What is the standard deviation if a proportion of 0.094 is found from 25 samples each of size 200?
 
  A) 0.0637
  B) 0.0653
  C) 0.0004
  D) 0.0206

Question 2

There are three general locations that a taxi can go to: the airport, downtown, and elsewhere.
 
  When a taxi driver starts in the downtown location, there is a 0.40 chance that his first call will take him to the airport and a 0.40 chance of going to another downtown location. Once a taxi is at the airport, there is a 0.80 probability that the next fare will take him downtown and a 0.20 chance of going elsewhere. The probability of a call from anywhere except downtown taking him to the airport is 0.20. Therefore, the probability that the taxi is at the airport when the third call arrives after going on shift is 0.20.
   Indicate whether the statement is true or false
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
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prumorgan

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

D

Answer to Question 2

TRUE


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newyorker26

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Reply #2 on: Jun 24, 2018
Thank you :)


prumorgan

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Reply #3 on: Jun 24, 2018
Happy to help you


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