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Author Question: A market researcher randomly selects 200 homeowners under 45 years of age and 200 homeowners over 45 ... (Read 133 times)

fahad

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on: Jul 25, 2018
A market researcher randomly selects 200 homeowners under 45 years of age and 200 homeowners over 45 years of age. What sampling technique was used?
 
  A) stratified
  B) systematic
  C) simple random
  D) convenience
  E) cluster

Question 2

The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 2.5 to 4.5 millimeters. What is the probability that a randomly selected ball bearing has a diameter greater than 3.
 
  3 millimeters?
  A) 0.7333 B) 1.5 C) 0.4714 D) 0.6


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6ana001

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Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

D


fahad

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Reply #2 on: Jul 25, 2018
Thanks


6ana001

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Reply #3 on: Jul 25, 2018
Welcome :)


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