View the step-by-step solution to:

A university has 14 statistics classes scheduled for its Summer 2013 term.

A university has 14 statistics classes scheduled for its Summer 2013 term. 1 class has space available for 40 students, eight classes have space for 50 students, 1 class has space for 70 students, and four classes have space for 100 students.



Space is available for 910 students. Suppose that each class is filled to capacity and select a statistics student at random. Let the random variable X equal the size of the student's class. Define the PDF for X. (Enter your answers as fractions.) 

x p(x=x) x*p(x=x)

40 _____ __________


50 _______ _________


70 ________ ____________


100 __________ ___________




(c) Find the mean of X. (Enter your answer as a whole number.) 

 

______________ students


(d) Find the standard deviation of X. (Round your answer to two decimal places.) 

 

 

_________ students

Top Answer

PDF is given please follow. (c) Mean of X: Mean,  μ... View the full answer

A5.PNG

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online