A school requires each student to take at least one course in algebra (A), biology (B) or chemistry (C).
24 take A, 21 take B, 19 take C; 10 take A and B, 9 take A and C, 14 take B and C; 6 take all three.
How many students are there?
a) 30
b) 42
c) 37
d) 64
A school requires each student to take at least one course in algebra (A), biology (B)...
An elementary school teacher assigns classroom jobs to three students each week, One student hands out craft supplies, one erases the whiteboard, one tak messages to the office. How many different ways can the teacher assign these three jobs to the 24 students in her class? 3. (b) 24 (c) 2024 (d) 12144 (e) 13824
6. Students in one statistics course need to earn a grade of at least C, otherwise they need to repeat the course. It is also known that 85% of all students who attend class regularly will earn a grade of at least C, while only 30% of those students who do not attend class regularly will earn a grade of at least C. Historically, 80% of all students in this course attend class regularly. You must explicitly define any events...
Are the grades one receives in a course related to the amount of time spent studying the subject? To analyze this possibility, a student took a random sample of 60 students who had enrolled in an accounting class last semester. She asked each student to report his or her grade in the course and the total number of hours spent studying accounting. The data are stored in this Excel file (SEE DATA BELOW) Question 4. How many points would a...
suppose that approximately 20% of community college student enroll in at least one online course.suppose we sample 500 community college students . A. What value should you expect for our sample proportion of community college students enrolled in at least one online course B. What is the standard erro C.fill In the blanks. We expect —% of community college students to be enrolled in at least one online course, give or take —%.
A local high school requires every student fill out a survey for incoming students. After all 1,250 students finish the survey, the information is compiled and used to get population parameters for the student body. Student Council is deciding whether or not to add a soda vending machine to the cafeteria. Luckily one of the questions on the incoming survey was “On average, how many soft drinks do you drink each day?” Looking at all of the responses, they find...
WITH CLEAR HANDWRITTING PLEASE Illustrate the given operations using the Venn diagrarm 1. Ain (ВПС) How many students were enrolled in 1. exactily one subject 2. at most one subject 3. at least one subject 4. Algebra or Physics 5. Algebra and Physics but not Chemistry 2. (AUB)'nc Give the set implied by each of the following with H-(a, b, c, d, e,f,g). 1. [a, b)u [lc, d, b)n (b, d)] Problem solving using Venn diagrams. In a certain class...
Given a class called Student and a class called Course that contains an ArrayList of Student. Write a method called getDeansList() as described below. Refer to Student.java below to learn what methods are available. I will paste both of the simple .JAVA codes below COURSE.JAVA import java.util.*; import java.io.*; /****************************************************** * A list of students in a course *****************************************************/ public class Course{ /** collection of Students */ private ArrayList<Student> roster; /***************************************************** Constructor for objects of class Course *****************************************************/...
1. Assume that there are an arbitrarily large number of copies of ten different discrete math books (which we will call titles) for cmsc250. Each student must choose one title as the course text book. Assume that the five hundred students taking the course are indistiguishable. You may want to wait until after class on Tuesday to do Parts (e) and (f) (a) How many different ways can the students choose titles? (b) How many different ways can the students...
Name Use complete sentences if possible The following StudentGrade relation (table) stores the Student, Major, and Course information Each student has unique StudentID. Assume that a student has only one major. One student can take multiple courses in one SemesterYear. One course can be taken by many students in each SemesterYear. Given values for StudentID, Course Number, and SemesterYear, one can determine all the rest of values for a record. However only Grade is functionally dependent on StudentlD, CourseNumber and...
The SAT and the ACT are the two major standardized tests that colleges use to evaluate candidates. Most students take just one of these tests. However, some students take both. The data data42.datgives the scores of 60 students who did this. How can we relate the two tests? (a) Plot the data with SAT on the x axis and ACT on the y axis. Describe the overall pattern and any unusual observations. (b) Find the least-squares regression line and draw...