Approximate the Variance and Standard Deviation of a Variable from Grouped Data
-For the following data set, approximate the sample standard deviation of monthly telephone bills (in dollars). $\begin{array}{c|c}
\text { Bill (in \$) } & \text { Frequency } \
\hline 50-52 & 2 \
53-55 & 5 \
56-58 & 12 \
59-61 & 19 \
62-64 & 7
\end{array}$

A) $\$ 3.11$
B) $\$ 58.60$
C) $\$ 93.12$
D) $\$ 9.65$

Question

Approximate the Variance and Standard Deviation of a Variable from Grouped Data
-For the following data set, approximate the sample standard deviation of monthly telephone bills (in dollars). $\begin{array}{c|c}
\text { Bill (in \$) } & \text { Frequency } \
\hline 50-52 & 2 \
53-55 & 5 \
56-58 & 12 \
59-61 & 19 \
62-64 & 7
\end{array}$

A) $\$ 3.11$
B) $\$ 58.60$
C) $\$ 93.12$
D) $\$ 9.65$

Quizplus · Accepted Answer

The Answer of Approximate the Variance and Standard Deviation of a Variable from Grouped Data
-For the following data set, approximate the sample standard deviation of monthly telephone bills (in dollars). $\begin{array}{c|c}
\text { Bill (in \$) } & \text { Frequency } \
\hline 50-52 & 2 \
53-55 & 5 \
56-58 & 12 \
59-61 & 19 \
62-64 & 7
\end{array}$

A) $\$ 3.11$
B) $\$ 58.60$
C) $\$ 93.12$
D) $\$ 9.65$