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Author Question: The time between arrivals at an ATM machine follows an exponential distribution with = 10 minutes. ... (Read 129 times)

SAVANNAHHOOPER23

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on: Jun 24, 2018
The time between arrivals at an ATM machine follows an exponential distribution with  = 10 minutes. Find the mean and standard deviation of this distribution.
 
  A) Mean = 3.16, Standard Deviation = 3.16 B) Mean = 10, Standard Deviation = 10
  C) Mean = 10, Standard Deviation = 3.16 D) Mean = 10, Standard Deviation = 100

Question 2

P(-1 < x < 0 ) = P(0 < x < 1 ) for any random variable x that is normally distributed.
 
  A) True B) False


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aruss1303

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

B

Answer to Question 2

B


SAVANNAHHOOPER23

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

6ana001

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Reply 3 on: Yesterday
Wow, this really help

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