Show & explain work please

Constructing Frequency Distributions. In Exercises 11-18, use the indicated data to construct the frequency distribution. (The data for Exercises 13-16 can be downloaded at TriolaStats.com.) 11. Old Faithful Listed below are sorted duration times (seconds) of eruptions of the Old Faithful geyser in Yellowstone National Park. Use these times to construct a frequency distribu- tion. Use a class width of 25 seconds and begin with a lower class limit of 125 seconds. 125 203 205 221 225 229 233 233 235 236 236 237 238 238 239 240 240 240 240 241 241 242 242 242 243 243 244 245 245 245 245 246 246 248 248 248 249 249 250 251 252 253 253 255 255 256 257 258 262 264 12. Tornadoes Listed below are the F-scale intensities of recent tornadoes in the United States. Construct a frequency distribution. Do the intensities appear to have a normal distribution? 0 4 0 0 1 1 1 0 0 0 1 2 0 1 10101 1 1 1 0 010010011 130002030000 0