sixty-two percent of pet owners say they consider their pet to be their best friend. you randomly select 12 pet owners and ask them if they consider their pet to be their best friend. find the probability that the number who say their pet is their best friend is (a) exactly nine, (b) at least eight, and (c) at most three.

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.