Use the grouped data formulas to find the indicated mean or standard deviation.
-For the following data set, approximate the sample standard deviation. $$\begin{array} { c | c }
\text { Phone calls (per day) } & \text { Frequency } \
\hline 8 - 11 & 18 \
12 - 15 & 23 \
16 - 19 & 38 \
20 - 23 & 47 \
24 - 27 & 32
\end{array}$$
A)5.1
B)18.8
C)2.9
D)3.2

Question

Use the grouped data formulas to find the indicated mean or standard deviation.
-For the following data set, approximate the sample standard deviation. $$\begin{array} { c | c } 
\text { Phone calls (per day) } & \text { Frequency } \
\hline 8 - 11 & 18 \
12 - 15 & 23 \
16 - 19 & 38 \
20 - 23 & 47 \
24 - 27 & 32
\end{array}$$
A)5.1
B)18.8
C)2.9
D)3.2

Quizplus · Accepted Answer

The Answer of Use the grouped data formulas to find the indicated mean or standard deviation.
-For the following data set, approximate the sample standard deviation. $$\begin{array} { c | c } 
\text { Phone calls (per day) } & \text { Frequency } \
\hline 8 - 11 & 18 \
12 - 15 & 23 \
16 - 19 & 38 \
20 - 23 & 47 \
24 - 27 & 32
\end{array}$$
A)5.1
B)18.8
C)2.9
D)3.2

Use the Grouped Data Formulas to Find the Indicated Mean