Roth Is a Computer-Consulting Firm The Variance Is
A) 1

Multiple Choice

Roth 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. $$\begin{array}{l}\text { Number of }\\\begin{array} { c c } \text { New Clients } & \text { Probability } \\\hline 0 & 0.05 \\1 & 0.10 \\2 & 0.15 \\3 & 0.35 \\4 & 0.20 \\5 & 0.10 \\6 & 0.05\end{array}\end{array}$$ The variance is

A) 1.431
B) 2.047
C) 3.05
D) 21