Student’s class percentage is 82.20%. He gets 100% for the most recent Exam. What is the...
1. A student receives test scores of 62, 83, and 91. The student’s final exam score is 88 and homework score is 76. Each test is worth 20% of the final grade, the final exam is 25% of the final grade and the homework grade is 15% of the final grade. What is the student’s mean score in the class?
1. Suppose in a class of 100 students who took an exam scored out of 100, the 68thpercentile of the exam scores was 72. Thus, _________% of the students who took the exam scored less than a 72. a.32% b.68% c.72% d.28% e.None of the above 2. Suppose in a class of 80 students who took an exam scored out of 100, the 40thpercentile of the exam scores was 58. Approximately how many of the 80 students scored above a...
3.1 Now suppose that a multiple-choice exam has 100 questions, each with 4 possible selections. Again, assume our beleaguered student was unable to prepare for this exam and just guessed at each question. Use MINITAB to help you answer a) to c). (8 Marks: 2 Marks for each of a), b), c) and d).) a. What is the probability that the student gets at least one question correct? b. What is the probability that the student gets between 15 and...
3, Gosha is a smart fellow. He gets an A in a course 80% of the time. Still, he likes his leisure, only studying for the final exam in half of his courses. Nevertheless, when he does study, he is almost sure (95% likely) to get an A. Assuming he got an A, how likely is it that he studied? If someone estimates the above to be 75%, what error are they committing? Explain.
i) A batter's hitting average is 0.357. If he gets up to bat 648 times, what is the probability he gets at least 250 hits? ii) Find the mean and standard deviation for the following binomial distribution: rolling a die 50 times and getting at most 37 six's.
In class A, the mean score on a math exam was 85. In class B, the mean score on the same test was 75. There were 30 students in each class. The scores in class A ranged from 83 through 87, whereas the score. in class B ranged from 45 through 100. Which of the following is an appropriate conclusion that can be drawn from the information given above? res The standard deviation of scores was higher in class B....
Given the Exam class shown below, which of the following would be the most appropriate heading for its default constructor? public class Exam { Assuming a is 5, b is 6, and c is 8, which of the following is false? a <= (b * 2) && a>2; c >= 4 || c - a > b; a <= (b * 2); (1 + a) == c; a >= 0 || c>8;
4. An exam paper consists of ten multiple choice questions, each offering four choices of which only one is correct. If a candidate chooses his answers I completely at random, what is the probability that (i) he gets at least 8 questions right, (ii) the last of the ten questions is the eighth one he gets right, (ii) in six such exams, he gets at least 8 questions right in at most one exam?
Exam grades in my statics class tend to be normally distributed. I've been keeping long term records, and the mean grade is a 67, with a standard deviation of 13 (on a of 100 point exam). 9. What is the probability that a student gets a grade lower than a 90? 10. What fraction of the class would be expected to get a grade between 60 and 80? 11. What is the probability that one of my statics sections with...
Info: The next question related to the Exam class whose definition (.h file) is shown below. This Exam class represents a certain student’s test score. #include <string> namespace cs31 { class Exam { public: Exam ( std::string student, int score = 90 ); bool equal( const Exam & e1, const Exam & e2 ) const; int getScore() const; std::string getStudent() const; private: std::string mName; // Exam’s Student name int mScore; // Exam’s Student Score }; } 1a) Suppose we decide...