SOLUTION: A student is preparing for an upcoming midterm exam. The professor given the student 40 practice questions and plans to select 12 of the questions at random to create the midterm e
Algebra.Com
Question 1000158: A student is preparing for an upcoming midterm exam. The professor given the student 40 practice questions and plans to select 12 of the questions at random to create the midterm exam. Suppose the student knows how to correctly answer 34 of the 40 questions. Let X represent the number of questions the student answers correctly on the exam.
What is the probability distribution of X?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A student is preparing for an upcoming midterm exam. The professor given the student 40 practice questions and plans to select 12 of the questions at random to create the midterm exam. Suppose the student knows how to correctly answer 34 of the 40 questions. Let X represent the number of questions the student answers correctly on the exam.
What is the probability distribution of X?
---
mean = n*p = 12*(34/40)
----
std = sqrt(npq) = sqrt[12*(34/40)*(6/40)]
===========
Cheers,
Stan H.
-------------
RELATED QUESTIONS
A student is preparing for an upcoming midterm exam. The professor given the student 40... (answered by stanbon)
Draw a flowchart that will compute for the midterm grade of a student. The midterm grade... (answered by solver91311)
A BCC professor decides to grade his class as following: 20 percent for homework... (answered by ikleyn)
A class is given a list of 20 study problems from which 10 will be chosen as part of an... (answered by stanbon)
A class is given a list of 20 study problems from which 10 will be chosen as part of an... (answered by stanbon)
A college professor’s work responsibilities include answering student questions,... (answered by richwmiller)
If a student is given 40 terms to study and 13 are chosen at random on the midterm, how... (answered by richwmiller)
The regression equation below relates the scores student in an advanced statistics course (answered by Boreal)
Write a program that will compute and display the midterm grade of a student. Midterm... (answered by greenestamps)