I am grading 8 eight exams placed in randomized order. What is the probability I grade them in alphabetical order of students' last names?
total number of ways to arrange eight exams in in alphabetical order =8! =40320
therefore probability I grade them in alphabetical order of students' last names =1/40320
I am grading 8 eight exams placed in randomized order. What is the probability I grade...
PIUBlem 2. The Video Game Question. When I am not grading the ridiculous amounts of game. Let's talk statistics of digital card games. exams I have this semester, I play a digital card a) According to a website that tracks statistics, the deck I currently am playing has a 63% win-rate. It 1 plan to play 10 games tonight before I start grading, what is the probability that I win 8 or more of them? b) Rather than play a...
Eight rooks are placed randomly on a chess board. What is the probability that none of the rooks can capture any of the other rooks? Translation for those who are not familiar with chess: pick 8 unit squares at random from an 8 × 8 square grid. What is the probability that no two chosen squares share a row or a column? Hint. You can think of placing the rooks both with or without order, both approaches work.
Hi, I am writing Java code and I am having a trouble working it out. The instructions can be found below, and the code. Thanks. Instructions Here are the methods needed for CIS425_Student: Constructor: public CIS425_Student( String id, String name, int num_exams ) Create an int array exams[num_exams] which will hold all exam grades for a student Save num_exams for later error checking public boolean addGrade( int exam, int grade ) Save a grade in the exams[ ] array at...
4. Eight rooks are placed randomly on a chess board. What is the probability that none of the rooks can capture any of the other rooks? (In non-chess terms: Randomly pick 8 unit squares from an 8 x 8 square grid. What is the probability that no two squares share a row or a column?) Hint: How many choices do you have to place rooks in the first row? After you have made your choice, how many choices do you...
Here's a scenario our professor asked us to figure out for extra credit and I am not sure how to set it up or solve: Jeremy has a 64.80% in his class and needs a 70% in order to pass. The grading rubric is made up of three tests equaling 20% of his grade, online homework, which is 15% of his grade, and final exam, which is 25% of the overall grade. Jeremy's three test scores are 68%, 40%, and...
On an average weekend, I get three emails from students. I am interested in X, the random variable of the number of emails from students I will get this weekend. 1. What family of distributions does this situation belong to? What is (are) the parameter(s)? 2. What is the probability that I get one email, ?(?=1)? 3. What is the probability that I get 5 or less emails, ?(?≤5)? 4. I estimate that I will be able to answer all...
I am looking for help with the following question: In order to test whether students in a large State University have a certain genetic trait, an elaborate instrument has to be set up but the cost of testing additional subjects is not that expensive once the instrument is set up. From last year’s data, the proportion of students having that genetic trait was 0.28. To estimate this year’s proportion to within 0.02 by a 95% confidence interval, how many students...
I am currently attempting to create a simple blackjack game. In order to do so I have created an array for the values of my card like this, ValArray = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K']; what I need is to be able to assign a numerical value to each item in the array in order to count them. So that ‘A’ = 1 and ‘J’, ‘Q’, ‘K’ = 10. How do I...
C++ Assignment on Search and Sort for Chapter 8 Problem: Modify the student grade problem to include the following: • Write a Search function to search by student score • Write a Search function to search by student last name • Write a Sort function to sort the list by student score • Write a Sort function to sort the list by student last name • Write a menu function that lets user to choose any action he/she want to...
8. Find the probability of winning a lottery with the following rule. Select the six winning numbers from 1, 2, . . . , 37. (In any order. No repeats.) P(winning)=____ (Type an integer or a simplified fraction.) 9. In designing an experiment involving a treatment applied to 3 test subjects, researchers plan to use a simple random sample of 3 subjects selected from a pool of 57 available subjects. (Recall that with a simple random sample, all samples...