Question: The durations (in days) of pregnancies for a random sample of mothers Find the range, mean, variance, and standard deviation of the sample data set.

The durations (in days) of pregnancies for a random sample of mothers

277 291 295 280 268 278 291 277 282 279 296 285

Find the range, mean, variance, and standard deviation of the sample data set.

277 291 295 280 268 278 291 277 282 279 296 285 269 293 267 281 286 269 264 299

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