If the records show that the probability of failing this course is p=0.2, what is the probability that at most 2 students out of 15 fail this course?
A-10
B-3
C-1
D-0
F-1
*Failing grades are D's and F's*
If the records show that the probability of failing this course is p=0.2, what is the...
if there are 47 students and the failing rate is 15%, what is the probability of two students failing. Show steps
6. Suppose that the probability of getting an A in a particular course is 0.08, and assume that the all student grades are independent. If you randomly sample 20 students taking the course; a) Find the expected number of students that will get an A, and the standard deviation of number of students that will get an A. (b) Find the probability that no student gets an A. c) Find the probability that at most 2 students get an A...
6. Suppoee that the probability of getting an A in a particular course is 0.08, and assume that the all student grades are independent. If you randomly sample 20 students taking the course (a) Find the expected number of students that will get an A, and the standard deviation of number of students that will get an A. (b) Find the probability that no student gets an A. (e) Find the probability that at most 2 students get an A....
Assume an airplane has 4 engines each failing with probability of 0.0001. What is the probability that all 4 engines fail (none work)? A. 0.9999^4 B. 1 - 0.9999^4 C. 0.0001^4 D. 1
Assume an airplane has 4 engines each failing with probability of 0.0001. What is the probability that at least one engine fail? (Hint: Think about the complement event and its probability first) A. 0.9999^4 B. 1 - 0.9999^4 C. 0.0001^4 D. 1
Problem 1 A university found that in an introductory statistics course, about 40% of the enrolled students will pass the course with A or B grades, 30% will pass with a C and i 0% will obtained D or F grades. 20% of the students withdraw without completing the course. Assume that 20 students are registered for the course a Computethe probaill withdraw b. Compute the probability that exactly 4 will withdraw Compute the probability that more than 3 will...
From the college records, It was always known that 10% of the students who take Eng. 304 course would receive a letter grade of an "A", among the lo sections of the same course which usually total to 350 students, . Using the normal approximation concept, please find the following: 1. Probability that at least 40 students will receive A's? 2. Probability that at most 300 students will receive grades other than A's? 3. Expected number of students and the...
Please solve and explain steps suppose 82% o all students aking a beginning p oaramming course fail to get her first program to run on firs subr his on. Con from the other and the chance each student fails on their first try is consistent. (Round answers to three decimal places.) er a group of such student nere e c students succes independent (a) If X is the number of students whose program fails on the first run, then X...
Grade Scale Probability Expected Value Variance A 4 0.1 0.4 B 3 0.2 0.6 C 2 0.4 0.8 D 1 0.2 0.2 F 0 0.1 0 2 EXPECTED GRADE COURSE VARIANCE
Consider the following probability distribution: x P(x) 1 0.1 2 ? 3 0.2 4 0.3 What must be the value of P(2) if the distribution is valid? A. 0.6 B. 0.5 C. 0.4 D. 0.2 What is the mean of the probability distribution? A. 2.5 B. 2.7 C. 2.0 D. 2.9