Select the correct statements

Suppose your grade in a course depends on 10 weekly quizzes. Each quiz has ten yeso questions, each worth 1 point. The scoring has no partial credit. Your performance is a model of consistency: on each 1 point question, you get the right answer with probability p = 0.6, independent of the outcome on any other question. Thus your score X; on quiz i is between 0 and 10 Your overall score is X = Zizi Xi. The course has K online surveys. For each survey you take, you get a 10 point bonus credit. If you take k surveys, your modified semester average is YK = ! 10k+10 -izl Xi 10k+100 If you take k surveys, Yx is used to determine your course grade using simple letter grades without any curve: A: YK _ 0.9 B: 0.8