A data set has 60 observations with a minimum value equal to 30 ...

[genevieve1028]

A data set has 60 observations with a minimum value equal to 30 and a maximum value equal to 72. The estimated class width using the 2k > n rule to determine the number of classes is
 
  A) 7.
  B) 9.
  C) 10.
  D) 12.

Question 2

The area under the curve of the normal probability distribution is always equal to 1.0.
 
  Indicate whether the statement is true or false

[lgoldst9]

Answer to Question 1

A

Answer to Question 2

TRUE

[genevieve1028]

Excellent

[diana chang]

Thanks for the timely response, appreciate it