Problem 1

Determine the mean value of this set of numbers:

84, 38, 22, 77, 94
Procedure

Sum the values.

 84 + 38 + 22 + 77 + 94 = 315

Divide the sum by the number of values.

  

 

 315
5

 = 63
Solution

The mean value of this set of data

84, 38, 22, 77, 94

is 63

Problem 2

Determine the mean value of this set of numbers:

1, 2, 2, 3, 3, 3
Procedure

Sum the values.

 1+ 2 + 2 + 3 + 3 + 3 = 14

Divide the sum by the number of values.

  

 

 14
6

 = 2.3
Solution

The mean value of these numbers

1, 2, 2, 3, 3, 3

is 2.3
Problem 3

Sandi's exam grades for the semester are:

88, 82, 74, and 96

What is her average score for the semester?
Procedure

Sum the values.

 88 + 82 + 74 + 96 = 340

Divide the sum by the number of values.

  

 

 340
4

 = 85
Solution

The average value of these numbers

88, 82, 74, and 96

is 85