Exhibit 5-5
AMR is a computer-consulting firm. The number of new clients that they have obtained each month has ranged from 0 to 6. The number of new clients has the probability distribution that is shown below.
-Refer to Exhibit 5-5. The standard deviation is
A)1.431
B)2.047
C)3.05
D)21

Question

Exhibit 5-5
AMR is a computer-consulting firm. The number of new clients that they have obtained each month has ranged from 0 to 6. The number of new clients has the probability distribution that is shown below. 
-Refer to Exhibit 5-5. The standard deviation is
A)1.431 
B)2.047 
C)3.05 
D)21

Quizplus · Accepted Answer

The standard deviation is the square root of the variance. The variance is 2.047, so the standard deviation is sqrt(2.047) = 1.431.

Exhibit 5-5 AMR Is a Computer-Consulting Firm. the Number of New Clients