Martin measured the lengths of five shoes in his closet. their lengths were 10.252 inches, 9.894 inches, 10.455 inches, 9.527 inches, and 10.172 inches. which two estimation techniques will give the same result for the total number of inches for all five shoes?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?