Finish Times (To the Nearest Hour) for 10 Dogsled Teams $$\begin{array} { l l l l l l l l l l } 236 & 263 & 273 & 283 & 239 & 280 & 270 & 310 & 259 & 310\end{array}$$

Multiple Choice

Finish times (to the nearest hour) for 10 dogsled teams are shown below. Make a frequency table showing class limits, class boundaries, midpoints, frequency, relative frequencies, and cumulative frequencies. Use three classes. (Round your answer for relative frequency to the nearest hundredth and for midpoint to the nearest tenth.) $$\begin{array} { l l l l l l l l l l } 236 & 263 & 273 & 283 & 239 & 280 & 270 & 310 & 259 & 310\end{array}$$

A) $\begin{array}{l}\begin{array} { l l r r r r r l } \text { Class Limits}&\text { Boundaries }&\text {Midpoint }&\text {Freq. }&\text {Relative Freq.}&\text { Cumulative }\\\text { Freq. } & 236 - 260 & 235.5 - 260.5 & 248.0 & 3 0.30 & 3 \\261 - 284 & 260.5 - 284.5 & 272.5 & 5 & 0.50 & & 8 \\285 - 308 & 284.5 - 308.5 & 296.5 & 2 & 0.20 & & 10\end{array}\end{array}$
B) $\begin{array}{l}\begin{array} { l r r r r r r l } \text { Class Limits }&\text {Boundaries }&\text {Midpoint}&\text { Freq.}&\text { Relative Freq. }&\text {Cumulative }\\\text { Freq. } & 236 - 260 & 235.5 - 260.5 & 248.0 & 3 & 0.30 & 3 \\261 - 285 & 260.5 - 285.5 & 273.0 & 5 & 0.50 & & 8 \\286 - 310 & 285.5 - 310.5 & 298.0 & 2 & 0.20 & & 10\end{array}\end{array}$
C) $\begin{array}{l}\begin{array} { l c r r r r r l } \text { Class Limits }&\text {Boundaries }&\text {Midpoint }&\text {Freq. }&\text {Relative Freq. }&\text {Cumulative }\\\text { Freq. } & 236 - 260 & 235.5 - 260.5 & 248.0 & 4 & 0.30 & 3 \\261 - 284 & 260.5 - 285.5 & 273.0 & 7 & 0.50 & & 8 \\285 - 310 & 285.5 - 310.5 & 296.5 & 3 & 0.20 & & 10\end{array}\end{array}$
D) $\begin{array}{l}\begin{array} { l c r r r r r l } \text { Class Limits}&\text { Boundaries}&\text { Midpoint }&\text {Freq. }&\text {Relative Freq.}&\text { Cumulative }\\\text { Freq. } & 236 - 260 & 235.5 - 260.5 & 248.0 & 4 & 0.30 & 3 \\261 - 284 & 260.5 - 284.5 & 272.5 & 7 & 0.50 & & 8 \\285 - 308 & 284.5 - 308.5 & 296.5 & 3 & 0.20 & & 10\end{array}\end{array}$
E) $\text { none of these choices }$