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.
Mean = ∑x/n
88 = ∑x/15
Calculate ∑x.
Mean = (∑x+92)/16