The document explains how to calculate a z-score using the mean and standard deviation. An example with Bob eating chicken wings illustrates the process, where his average is 10 wings and the standard deviation is 2 wings. For 14 wings consumed, the z-score is calculated as 2.

1. Come up with a mean and standard deviation. Using the information you came up with, calculate
the Z-score. FOR EXAMPLE: Bob eats an average of 10 chicken wings on a Saturday night. His
standard deviation is 2 wings. This past Saturday, Bob ate 14 chicken wings. The Z-score is 2.
Solution
sol:
Z= (X-Mu)/Sigma
= average =10,
= 2,
x = 14 wings,
z = (x-)/ = 14-10/2 = 4/2 = 2
answer