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Author Question: What is the likelihood of finding a price of 3.68 or less for a gallon of gasoline from a normally ... (Read 89 times)

stephzh

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on: Jun 24, 2018
What is the likelihood of finding a price of 3.68 or less for a gallon of gasoline from a normally distributed population of gas prices? Assume  = 3.78 and  = 0.05.
 
  A) 0.4772
  B) 0.0793
  C) 0.4207
  D) 0.0228

Question 2

The advantage of using the interquartile range versus the range as a measure of variation is:
 
  A) it is easier to compute.
  B) it utilizes all the data in its computation.
  C) it gives a value that is closer to the true variation.
  D) it is less affected by extremes in the data.


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kristenb95

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

D

Answer to Question 2

D


stephzh

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Reply #2 on: Jun 24, 2018
Correct answers!


kristenb95

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Reply #3 on: Jun 24, 2018
Great! Please up vote :D


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