Science & Mathematics - 26 November 2006

As of TODAY, let's say that my data has a 5-day Mean of 10 with a Standard Deviation of 2 and thus 2 Standard Deviations of 4. Statistically speaking, with approximately 95% certainty, my data should fall between 14 and 6. Or should it?--hence my question. For example, what if as of TODAY my data ALSO has a 10-day Mean of 14 with a Standard Deviation of 3 and thus 2 Standard Deviations of 6. This tells me that my data should fall between 20 and 8 AS OPPOSED to 14 and 6. Is there a way to measure which one of these Means is more important for purposes of defining outer boundaries for my data TOMORROW. Is it some kind of "NORMAL DISTRIBUTION" test that I should perform.

In any case, without using Mathematical symbols (because I'm not completely familiar with them), could you please explain to me, step by step, how to determine which Mean is more important?

2006-11-26 15:15:22 · 6 answers · asked by Anonymous in Mathematics

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solve this quadratic equation?

a^2 - 7a + 12 = 0

2006-11-26 15:15:09 · 3 answers · asked by tigertank702 1 in Mathematics

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Which one of the following statements are true?

1. The product of wavelength and frequency of light is a constant
2. As the energy increases, the frequency of the radiation decreases.
3. As the wavelength of light increases, the frequency increases.

Answer Choices:
a. 1 only
b. 2 only
c. 3 only
d. 1 and 3 only
e. 2 and 3 only

2006-11-26 15:14:44 · 4 answers · asked by Anonymous in Physics

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biggest lake in th world?

where's the biggest lake in the world???

2006-11-26 15:14:04 · 9 answers · asked by Anonymous in Geography

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Help Please?

Please explain with as much detail as possible.

What is the y- intercept for 3x^2-7x+4?

2006-11-26 15:13:55 · 2 answers · asked by Eric 2 in Mathematics

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Two intensely freckled parents have 5 children, 2 of whom eventually become intensely freckled and 3 do not.?

Assuming that this trait is governed by a single pair of alleles, is this intense freakledness best explined as an example of dominant or recessive inheritance? Why?

Helpp!!!!

2006-11-26 15:13:50 · 2 answers · asked by pReCioUs_mE 1 in Biology

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rolle's + MVT?

f(x) = x^2 + 1, [0,2]

for MVT...i got x=1
for Rolle's..i got x=0

is that right?

2006-11-26 15:13:33 · 2 answers · asked by Julio 4 in Mathematics

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Does anyone know where I can get a powerful space telescope with a 20" mirror?

2006-11-26 15:12:18 · 2 answers · asked by Landon 1 in Astronomy & Space

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How is blood formed in the human body?

2006-11-26 15:11:38 · 6 answers · asked by Curio_us 2 in Biology

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If its 0 degrees C today, and tommorow its going to be twice as cold, what will the temprature be?

2006-11-26 15:09:18 · 13 answers · asked by Anonymous in Weather

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Albinism is a recessive trait in humans. A normally pigmented man marries an albino woman.?

They have 3 children, one of whom is an albino. What is the genotype of the father?

can somebody help me with this bio question b'c i have no idea!
thanks

2006-11-26 15:08:13 · 5 answers · asked by pReCioUs_mE 1 in Biology

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early sailors discovered a gradual change in position of the north star. this discovery helped to prove that?

A:Earth is round
B:Earth is flat at its poles
C:Earth rotates on its axis
D:Earth is approxmately 40,074 kilometers in circumference

2006-11-26 15:06:29 · 7 answers · asked by Angel E 2 in Astronomy & Space

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is it going rain or not?

2006-11-26 15:06:05 · 10 answers · asked by Anonymous in Weather

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How do you factor f(x)=x^4+x^3-7x^2-13x-6? and x^5+4x^4+6x^3-8x^2-7x-2?

...by using the rational roots theorem?

2006-11-26 15:05:37 · 4 answers · asked by ph103 1 in Mathematics

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rewrite 12 1/2 % to a decimal?

2006-11-26 15:02:08 · 16 answers · asked by Anonymous in Mathematics

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simplify logarithmic expression?

log 10 + ln e^-2 +log(sub 11) 1

2006-11-26 15:01:04 · 2 answers · asked by Anonymous in Mathematics

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Zero Divided by Zero is infinity or one?

2006-11-26 14:59:23 · 17 answers · asked by sukumar g 1 in Mathematics

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Very Very Tough Question?

What function might each of the 3 types of diffusion serve in a multicellular organism- for example, a human or a tree?

(simple diffusion, facilitated diffusion, and Active Transport

2006-11-26 14:57:26 · 5 answers · asked by kitty 1 in Biology

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Dream interpretaions?

I had a dream last night my husband had to go kill Jason (from friday the 13th). He would kill him and come back to bed. After he would kill Jason, Jason would always come back and my husband would kill him again. This pattern kept repeating until after about the third time, Jason killed my husband. I heard my husbands final cries so I got out of bed and went to my kitchen and grabbed a knife. When I turned around, Jason was in my hallway and I kept slicing him and stabbing him, but he wouldn't even flinch. I remember being so angry about him taking my husband away and even more angry that he wasn't dying from the gashes I put in his stomach and chest. Any interpretations?

2006-11-26 14:57:22 · 12 answers · asked by Anonymous in Other - Alternative

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calculus qeustion --- desperately need help?

If f(x) = sqrt(2x + 5) - sqrt(x+7) / x-2 , every except x=2
and f(2)=k

and f is a continuous function at x=2, then k is equal to what?
Please show how you get the answer. THANKS a bunch!

2006-11-26 14:56:40 · 4 answers · asked by Mandali 1 in Mathematics

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simplify expression logarithmic function?

log x^8/log x^2

x >0, x cant be1

2006-11-26 14:54:46 · 7 answers · asked by Anonymous in Mathematics

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water rocket?

Hw to make a rocket powered by water and compressed air?

2006-11-26 14:50:59 · 3 answers · asked by ghostrider.com 2 in Physics

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What is gunpowder made of?

2006-11-26 14:50:30 · 2 answers · asked by alliphant 2 in Chemistry