The cumulative frequency and cumulative relative frequency for a particular class interval are the sum of frequencies and relative frequencies, respectively, for that interval and all intervals lying below it. Compute the cumulative frequencies and cumulative relative frequencies for the following data: $$\begin{array} { l l l l l l l l l l }
75 & 89 & 80 & 93 & 64 & 67 & 72 & 70 & 66 & 85 \
89 & 81 & 81 & 71 & 74 & 82 & 85 & 63 & 72 & 81 \
81 & 95 & 84 & 81 & 80 & 70 & 69 & 66 & 60 & 83 \
85 & 98 & 84 & 68 & 90 & 82 & 69 & 72 & 87 & 88
\end{array}$$

Question

The cumulative frequency and cumulative relative frequency for a particular class interval are the sum of frequencies and relative frequencies, respectively, for that interval and all intervals lying below it. Compute the cumulative frequencies and cumulative relative frequencies for the following data: $$\begin{array} { l l l l l l l l l l } 
75 & 89 & 80 & 93 & 64 & 67 & 72 & 70 & 66 & 85 \
89 & 81 & 81 & 71 & 74 & 82 & 85 & 63 & 72 & 81 \
81 & 95 & 84 & 81 & 80 & 70 & 69 & 66 & 60 & 83 \
85 & 98 & 84 & 68 & 90 & 82 & 69 & 72 & 87 & 88
\end{array}$$

Quizplus · Accepted Answer

The Answer is

\begin{array} { c c c c c } \hline ext { Class } & ext { Frequency } & \begin{array} { c } ext { Relative } \ ext { Frequency }\end{array} & \begin{array} { c } ext { Cumulative } \ ext { Frequency }\end{array} & \begin{array} { c } ext { Cumulative } \ ext { Relative Frequency }\end{array} \\hline 60 - ext { under } 65 & 3 & .075 & 3 & .075 \\hline 65 - ext { under } 70 & 6 & .15 & 9 & .225 \\hline 70 - ext { under } 75 & 7 & .175 & 16 & .40 \\hline 75 - ext { under } 80 & 1 & .025 & 17 & .425 \\hline 80 - ext { under } 85 & 12 & .30 & 29 & .725 \\hline 85 - ext { under } 90 & 7 & .175 & 36 & .90 \\hline 90 - ext { under } 95 & 2 & .05 & 38 & .95 \\hline 95 - ext { under } 100 & 2 & .05 & 40 & 1.0 \\hline\end{array}

The Cumulative Frequency and Cumulative Relative Frequency for a Particular