Thursday
July 24, 2014

Homework Help: Math

Posted by abc on Sunday, March 16, 2014 at 8:27am.

Let X and Y be normal random variables with means 0 and 2, respectively, and variances 1 and 9, respectively. Find the following, using the standard normal table. Express your answers to an accuracy of 4 decimal places.

P(X>0.75)=
P(X≤−1.25)=
Let Z=(Y−3)/4. Find the mean and the variance of Z.

E[Z]=
var(Z)=
P(−1≤Y≤2)=

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

random variables - For the standard normal random variable Z, compute the ...
Statistics - Using the standard normal distribution tables, the area under the ...
Math - Random variables X and Y are both normally distributed with mean 100 and ...
MATH - Which of the following normal distributions has the smallest spread? A. A...
math 115 - Let x be a continuous random variable that follows a normal ...
statistics - 1)Please Help In testing whether the means of two normal ...
Stats - Give the numerical value for each of the following descriptions ...
random variables - For the standard normal random variable Z, compute the ...
prob and stats - The tread lives of the Super Titan radial tires under normal ...
statistics - Q. The MBA department is concerned that dual degree students may be...

Search
Members