Finish Times (To the Nearest Hour) for 60 Dogsled Teams

Finish times (to the nearest hour) for 60 dogsled teams are shown below. Use five classes. Categorize the basic distribution shape as uniform, mound-shaped symmetric, bimodal, skewed left, or skewed right. $$\begin{array} { l l l l l l l l l l l l } 261 & 271 & 236 & 244 & 279 & 296 & 284 & 299 & 288 & 288 & 247 & 256 \\338 & 360 & 341 & 333 & 261 & 266 & 287 & 296 & 313 & 311 & 307 & 307 \\279 & 283 & 277 & 283 & 285 & 275 & 259 & 239 & 288 & 289 & 297 & 299 \\341 & 358 & 257 & 328 & 244 & 328 & 245 & 258 & 259 & 259 & 319 & 315 \\339 & 359 & 347 & 348 & 333 & 321 & 323 & 324 & 327 & 349 & 351 & 355\end{array}$$ The relative frequency histogram of the above data is given below.

A) mound-shaped symmetric
B) none of these choices
C) Bimodal
D) Uniform or rectangular
E) Skewed right