Question

If X1 and X2 are independent standard normal variables, find P(X1^2 + X2^2 > 2.41)

235

likes1177 views

Jayne

4.4

94 Answers

looking at chi square table.
at df=2
the area at less than 2.41 = 0.30
P(X>2.41)=1-0.3
P(X>2.41)=0.7

Frequently asked questions (FAQs)

A store sold 120 shirts in the first week, 150 shirts in the second week, and 180 shirts in the third week. How many shirts were sold in total during those 3 weeks?

+

What is the measure of each angle in a regular octagon?

+

Math question: "Factorize the expression 4x² + 12xy + 9y² using the distributive property."

+

New questions in Mathematics