A student needs to know details of a class assignment that is due the next day and decides to call f
Question: (a) A very large shipment of parts contains 10% defectives. Two parts are chosen at random from the shipment and checked. Let the random variable X denote the number of defectives found. Find the probability function of this random variable.
(b) A shipment of twenty parts contains two defectives. Two parts are chosen at random from the shipment and checked. Let the random variable Y denote the number of defectives found. Find the probability function of this random variable. Explain why you answer is different from that of part (a).
(c) Find the mean and variance of the random variable X in part (a).
(d) Find the mean and variance of the random variable Y in part (b).
Solution:
Price: $2.99
Solution: The solution consists of 2 pages
Deliverables: Word Document
Deliverables: Word Document
-
[Solved] Students in large accounting class were asked to rate the course by assigning a score of 1,2,3,4 or #9746
-
[Solved] Let W have a U(π ,2pi) distribution. What is larger: E( sin (W)) or sin (E(W)) ? #16939
-
[Solution] A family (definitely not one in Au Associates) wants to have four children. a. What #14374
-
[Solved] X and Y are i.i.d. random variables with common probability mass function Pr (X=k)=Pr (Y=k)=p{{q}^k #28079
-
Free Math Help
-
Math Solved Problems
