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Author Question: The probability that a call received by a certain switchboard will be a wrong number is 0.02. Use ... (Read 168 times)

laurencescou

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on: Jul 25, 2018
The probability that a call received by a certain switchboard will be a wrong number is 0.02. Use
  the Poisson distribution to approximate the probability that among 150 calls received by the
  switchboard, there are at least two wrong numbers.
 
  A) 0.8009 B) 0.7760 C) 0.2240 D) 0.1991 E) 0.5768

Question 2

A meteorologist constructs a graph showing the total precipitation in Phoenix, Arizona in each of the months of 1998. Does this involve descriptive statistics or inferential statistics?
 
  A) Descriptive B) Inferential


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paavo

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

A

Answer to Question 2

A


laurencescou

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Reply 2 on: Jul 25, 2018
Great answer, keep it coming :)

mcarey591

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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