For a biology lab experiment, you have to randomly select four mice. the mice to be chosen come from a population bred to weigh 30 grams, give or take 5 grams or so. the total weight t of the four mice will grams, give or grams or so. use the pythagorean property of standard errors.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.