The Cumulative Frequency and Cumulative Relative Frequency for a Particular

question 5

Essay

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: $$\begin{array} { l l l l l l l l l l } 75 & 89 & 80 & 93 & 64 & 67 & 72 & 70 & 66 & 85 \\89 & 81 & 81 & 71 & 74 & 82 & 85 & 63 & 72 & 81 \\81 & 95 & 84 & 81 & 80 & 70 & 69 & 66 & 60 & 83 \\85 & 98 & 84 & 68 & 90 & 82 & 69 & 72 & 87 & 88\end{array}$$

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