In most situations, the true mean and standard deviation are ...

[ahriuashd]

In most situations, the true mean and standard deviation are unknown quantities that have to be estimated.
 
  A) True B) False

Question 2

Nearly 100 of the observed occurrences of a random variable x that is normally distributed will fall within three standard deviations of the mean of the distribution of x.
 
  A) True B) False
 
  .

[amit]

Answer to Question 1

A

Answer to Question 2

A

[ahriuashd]

Thanks for the timely response, appreciate it

[covalentbond]

Great answer, keep it coming