Monday
April 21, 2014

Homework Help: STAT

Posted by Michelle on Tuesday, May 1, 2012 at 12:01am.

Determine the mean and standard deviation of the random variable for which the probability mass function is defined as follows:
P(X=x)= x-2/30 if x=3,12,21

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - Random variables X and Y are both normally distributed with mean 100 and ...
MTH- STAT 201 - Can someone please help how to solve this I keep getting the ...
math - Suppose x is a random variable with mean and standard deviation. If a ...
Statistics - 1) A Motor Company has purchased steel parts from a supplier for ...
math - The probability that a person has immunity to a particular disease is 0.3...
Stats - The random variable U has mean 10 and standard deviation 5.The random ...
STATISTICS - Consider a binomial random variable where the number of trials is ...
Statistics - data from sample of 400 cases, variable has 95% confidence interval...
Statisitcs - The mean height of fully grown birch trees are 18 feet with a ...
STAT - You want to determine if your widgets from machine 1 are the same as ...

Search
Members