# Statistics

posted by .

r^2
the corelation squared

measures how well the y hat is than just using y bar or the other way around...

I don't remeber what r^2 measures I have what it means on my calculator but I still don't understand it

My teacher told me it's basically somehting like how much better y hat is to predict y values than y bar or somethiing like that

thanks

## Similar Questions

1. ### Math

How are decimals used in everyday life? The main use I can think of is in money. Money is expressed in decimal form. Although for everyday use, we rely on inches, feet and yards for distance, other countries use decimal measures â€”
2. ### MATH!!!!!!!

PLEASE HELP!!! A standard doorway measures 6 feet 8 inches by 3 feet. What is the largest dimension that will fit through the doorway without bending?
3. ### Algebra

If anyone could please just look these over: The given measures are the perimeters of squares. Find (a) the length of a side and (b) the area of the square. Perimeters: 1.) 20 cm 2.) 100mm 3.) 4ft 4.) 2in 5.) 2.8m My answers: 1.) a- …
4. ### Algebra

Please look over- 1.) Find the area of a rectangle in which the base measures 20 centimeters and the height is half the length of the base. My Answer= area= 200cm squared 2.) Find the area of a parallelogram in which the height measures …
5. ### psychology

Such tests as the Rorschach Inkblot Test and the Thematic Apperception Test are examples of what?
6. ### algebra I

for my homework I have to graph 4 equations: 1. y=1/4x^2+3x-3 2. y=-x^2+7x-2 3. y<x^2+7x+6 4. y<*-1/3x^2+4x+5/2 [<* means greater than OR equal to. I just don't know how to put the line under it] we are allowed to do them …
7. ### statistics

I need to prove this σ(hat)^2(x,y) = (1/n) Σ (Xi - X (bar) ) Yi using σ(hat)^2(x,y)= (1/n) Σ (Xi - X(bar)) (Yi-Y(bar)) and X(bar)= (1/n) Σ Xi σ(hat)^2 (x,y) is the estimator of covariance
8. ### Math

how do you find the surface area of a sphere if the circonference measures 20 pie ft?
9. ### Math

I have posted this over 3 times and I just want to know if I did the 2nd part correctly with v. Do you multiply it by 10 for 10 cubes or 32 for 32 sides for all of them. Can anyone please help, I just want to learn the correct way …
10. ### statistics

You are part of a school and have to report the results of standardized test scores. Which measure of central tendency would you use?

More Similar Questions