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Author Question: Given that X is a normally distributed random variable with a mean of 52 and a standard deviation of ... (Read 54 times)

jeatrice

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on: Jun 24, 2018
Given that X is a normally distributed random variable with a mean of 52 and a standard deviation of 2, the probability that X is between 48 and 56 is:
 
  A) 0.0896
  B) 0.4104
  C) 0.5896
  D) 0.9544

Question 2

The concept of variance can be very useful in comparing the dispersions of probability distributions.
 
  Indicate whether the statement is true or false


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hugthug12

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

D

Answer to Question 2

TRUE


jeatrice

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Reply 2 on: Jun 24, 2018
Excellent

isabelt_18

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Reply 3 on: Yesterday
Wow, this really help

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