Math 3107, Section 2 Wednesday, May 13

Spring 1999

Homework due Monday, May 17
 
 

Part I:

Consider the following two sets of test scores:
 

Test 1 81 83 87 78 76 75
Test 2 85 91 99 74 67 64
  1. Find the mean for each set of test scores.

    2.  
  2. Find the standard deviation for each set of test scores by using the definition given at the top of p. 201 of the notes, or equivalently by using formula (11.7).

    3.  
  3. Check your answers by using the second method for calculating the standard deviation, or equivalently, by using formula (11.9).

    4.  
Part II: