Answer Happy

Section 6.1 Counting Principles (25 points) Show your work 1. E 25 ↓ 60 = 85 (each section has 2 points) a. Computer Science Department has 90 graduate students and 400 undergraduate students. There is a function where one representative has to picked from graduate students and one from undergraduate student. How many ways can student pairs be picked up such that one is graduate student, and another is undergraduate student? 90 ways b. A test has ten multiple choice questions. First five questions have five multiple choices and remaining five have four multiple choices. In how many ways, students can answer the questions? 85 ways c. People abbreviate their names using three letters followed by one element from the set {"", "Jr.", "Sr."). In how many ways people can abbreviate their names.