Science & Mathematics - 23 December 2006

Which of the following techniques is used to predict the value of one variable on the basis of other variables?
Question 5 answers
Correlation analysis
Coefficient of correlation
Covariance
Regression analysis

2006-12-23 20:13:00 · 3 answers · asked by Anonymous in Mathematics

2006-12-23 20:11:57 · 14 answers · asked by bhole b 1 in Earth Sciences & Geology

2006-12-23 20:09:46 · 5 answers · asked by utah 1 in Chemistry

2006-12-23 20:08:54 · 11 answers · asked by utah 1 in Chemistry

Bible. Job 38:30-32;

2006-12-23 20:08:45 · 3 answers · asked by jeni 7 in Astronomy & Space

f all the points in a scatter diagram lie on the least squares regression line, then the coefficient of correlation must be:
Question 2 answers
1.0
-1.0
either 1.0 or -1.0
0.0

2006-12-23 20:04:39 · 3 answers · asked by Anonymous in Mathematics

2006-12-23 19:42:27 · 13 answers · asked by amit s 1 in Mathematics

2006-12-23 19:40:56 · 12 answers · asked by spencer w 2 in Zoology

I like this question. Nobody knows the answer but me.

2006-12-23 19:39:46 · 11 answers · asked by wwwwwwwfe 1 in Physics

Ok, so I've heard the universe is nearly infinite, so Ive been wondering.....If the universe ISN'T infinite, whats stopping it from being so. Also, if the universe is so big, you think that somewhere out there, there is another planet that contains human life? Im sure if the universe was infinite, there would be at least one planet containing life like ours.

2006-12-23 19:35:27 · 10 answers · asked by Anonymous in Astronomy & Space

application of geneticengineering

2006-12-23 19:34:15 · 7 answers · asked by vipin s 1 in Mathematics

Answer needed plz help....
can anyone do it??
plz remember only 3 traingles(not more, not less)

2006-12-23 19:23:12 · 8 answers · asked by Aniket Pathak 1 in Other - Science

Could it be that these bose supernova are making mini "black holes" or is the mater being pulled/pushed some where else in the universe at faster then light speeds? What your thoughts on the subject?

2006-12-23 19:22:28 · 5 answers · asked by magpiesmn 6 in Astronomy & Space

why are we not using same voltage all over the world?
is there any advantage in using lower voltages?

2006-12-23 19:21:53 · 5 answers · asked by midhun g 1 in Engineering

2006-12-23 19:17:36 · 2 answers · asked by MANISH 1 in Engineering

do you think in millions and millions of years the earth is gonna become a square??

I do

2006-12-23 19:14:03 · 7 answers · asked by Anonymous in Astronomy & Space

2006-12-23 19:13:08 · 16 answers · asked by stewy w 1 in Biology

Here's a question I have trouble wrapping my mind around:

A person riding some futuristic speedy train pulls a Colt 1911 and fires a round from the rear of the caboose (exact opposite direction the train is traveling). If the train was traveling at a velocity of 750 feet per second and the projectile from the handgun was also traveling 750 fps, to the stationary observer standing by the tracks, would the bullet appear to simply emerge from the barrel and fall directly to the ground?

I try to simplify this by applying the same idea to lower velocities. I try to figure what a baseball would do if a person threw one from the rear of a modern Amtrak at 40 MPH when the locomotive was ALSO traveling at 40 MPH at the time. Still, I cannot figure what would appear to happen to the ball to the stationary track-side observer.... it hurts my brain!

Any ideas?

2006-12-23 19:09:00 · 6 answers · asked by Snowdog 2 in Physics

i need to tell if i have gold wire connextion how can i tell if its real gold or fake

2006-12-23 19:07:43 · 7 answers · asked by crateman2 1 in Earth Sciences & Geology

2006-12-23 19:03:54 · 2 answers · asked by deen 1 in Earth Sciences & Geology

Sqrt(-4) * Sqrt(-9) =
2i * 3i =
6 (-1) =
-6
But Sqrt(-4) * Sqrt(-9) =
Sqrt((-4) * (-9)) =
Sqrt(36) =
6
Therefore
-6 = 6?
Don't say that there is no such thing as Sqrt(-1)

2006-12-23 18:51:15 · 5 answers · asked by Scythian1950 7 in Mathematics

2006-12-23 18:46:45 · 11 answers · asked by Anonymous in Astronomy & Space

a cat has 38 chromosomes in its somatic cells. how many chromosomes would it have in each of its gametes?

so how do you know how many chromosomes for a gamete, or gamete for chromosome?

2006-12-23 18:44:54 · 5 answers · asked by baby 2 in Biology

2006-12-23 18:44:50 · 2 answers · asked by shabka 1 in Engineering

I want to know the distance in miles and in light years between each of the starts in the Big Dipper.I at least want the distance in miles.Any help with this question will make me very greatfull.Thank you so very much.

2006-12-23 18:39:09 · 7 answers · asked by nitewolf6903 1 in Astronomy & Space

2006-12-23 18:35:43 · 8 answers · asked by Anonymous in Physics

what is the proof of x + y + z = 3xyz if x + y + z = 0

2006-12-23 18:34:13 · 12 answers · asked by ishisgreat 1 in Mathematics

2006-12-23 18:32:16 · 7 answers · asked by parimal s 1 in Engineering

2006-12-23 18:28:55 · 7 answers · asked by anand b 1 in Weather

2006-12-23 18:25:54 · 15 answers · asked by IMHO 6 in Medicine