2) In a course, there are 2 midterm exams and 1 final exam. Grades obtained from these exams are indepen- dent and normally distributed with following means and standard deviations: • Midterm 1: Mean and standard deviation are 65 and 20, respectively. • Midterm 2: Mean and standard deviation are 60 and 25, respectively. • Final: Mean and standard deviation are 40 and 15, respectively. In the calculation of overall grades, we take % 30 of grades of each midterm and % 40 of the grade of the final exam. If the passing grade is 40 (i.e., overall grade should be at least 40 to pass from this course), find the proportion of students who will fail from the course.

2) In a course, there are 2 midterm exams and 1 final exam. Grades obtained from these exams are indepen- dent and normally distributed with following means and standard deviations: • Midterm 1: Mean and standard deviation are 65 and 20, respectively. • Midterm 2: Mean and standard deviation are 60 and 25, respectively. • Final: Mean and standard deviation are 40 and 15, respectively. In the calculation of overall grades, we take % 30 of grades of each midterm and % 40 of the grade of the final exam. If the passing grade is 40 (i.e., overall grade should be at least 40 to pass from this course), find the proportion of students who will fail from the course.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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