The following is the frequency distribution for the speed of a sample of automobiles traveling on an interstate highway. $$\begin{array} { c c }
\text { Speed } ( m p h ) & \text { Frequency } \
50 - 54 & 2 \
55 - 59 & 4 \
60 - 64 & 5 \
65 - 69 & 10 \
70 - 74 & 9 \
75 - 79 & \underline { 5 } \
& 35
\end{array}$$ The standard deviation is
A) 6.969.
B) 7.071.
C) 48.570.
D) 50.000.

Question

The following is the frequency distribution for the speed of a sample of automobiles traveling on an interstate highway. $$\begin{array} { c c } 
\text { Speed } ( m p h ) & \text { Frequency } \
50 - 54 & 2 \
55 - 59 & 4 \
60 - 64 & 5 \
65 - 69 & 10 \
70 - 74 & 9 \
75 - 79 & \underline { 5 } \
& 35
\end{array}$$ The standard deviation is
A) 6.969.
B) 7.071.
C) 48.570.
D) 50.000.

Quizplus · Accepted Answer

The Answer of The following is the frequency distribution for the speed of a sample of automobiles traveling on an interstate highway. $$\begin{array} { c c } 
\text { Speed } ( m p h ) & \text { Frequency } \
50 - 54 & 2 \
55 - 59 & 4 \
60 - 64 & 5 \
65 - 69 & 10 \
70 - 74 & 9 \
75 - 79 & \underline { 5 } \
& 35
\end{array}$$ The standard deviation is
A) 6.969.
B) 7.071.
C) 48.570.
D) 50.000.

The Following Is the Frequency Distribution for the Speed of a Sample