Given that X is a normally distributed random variable with a ...

[jeatrice]

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

[hugthug12]

Answer to Question 1

D

Answer to Question 2

TRUE

[jeatrice]

Wow, this really help

[strudel15]

Thanks for the timely response, appreciate it