Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
-
answerhappygod
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
Post
by answerhappygod »
- A Random Variable N Has Pmf Pn K Constant K K 1 Where K 2 3 4 And C Is A A Derive The Value Of Constant C 1 (10.33 KiB) Viewed 91 times
A random variable N has pmf pn(k) constant. k(k+ 1) where k 2,3,4,..., and c is a (a) Derive the value of constant c.
(b) Find a simple expression for the cdf Fr(2) of N (that is, you should simplify any potential sum appearing in the expression).
(c) Find the mean of N, if it exists. If it does not exist, prove that it does not exist.
(d) Find the standard deviation of N, if it exists. If it does not exist, prove that it does not exist.
(e) Let Y = (-1)^ N. What are the possible values of Y? Does the mean of Y exist? Justify your answer.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!