Data on how high a sample of professional basketball players can jump would be summarized using ...

Data on how high a sample of professional basketball players can jump would be summarized using
 
  a. the median and standard deviation.
  b. the mean and sample standard deviation.
  c. the mean and estimated population standard deviation.
  d. the mean and variance.

Question 2

A negative z score always yields a percentile of less than 50.
 
  Indicate whether the statement is true or false

Question 3

The major error in inferential statistics is to commit the sampling
  error.
 
  Indicate whether the statement is true or false

Question 4

Sx2 is the symbol for
 
  a. sample standard deviation.
  b. sample variance.
  c. estimated population standard deviation.
  d. estimated population variance.