15 students took a science test. the average score was 88.0. later in the day a sixteenth student took the same test and scored a 92. the teacher recalculated the class average using all 16 of the scares. by how much will the class average have increased? show your work.

Answer 1

Mean = ∑x/n

88 = ∑x/15

Calculate ∑x.

Mean = (∑x+92)/16