A store manager tracks the number of customer complaints each week. The following data reflect a ...

A store manager tracks the number of customer complaints each week. The following data reflect a random sample of ten weeks.
 
  11 19 4 6 8 9 6 4 0 3
 
  The variance for these data is approximately 27.78.
   Indicate whether the statement is true or false

Q. 2

One example of a difference between discrete random variables and continuous random variables is that in a discrete distribution P(x > 2 ) = P(x  3 ) while in a continuous distribution P(x > 2 ) is treated the same as P(x  2 ).
 
  Indicate whether the statement is true or false

Q. 3

Compare and contrast simple random, systematic, stratified, and cluster sampling.
 
  What will be an ideal response?

Q. 4

The difference between interval data and ratio data is that interval data has a natural zero.
 
  Indicate whether the statement is true or false