This is a TEST for all Polls & Surveys users! Take it NOW (multiple choice)?

Question

Just type your answers by the letter you think is correct.

1. Polls & Surveys is under what category?
A. Religion & Spirituality
B. Computers & Internet
C. Entertainment & Music
D. Pets

2. Who is the top answered of Polls & Surveys?
A. Lefty
B. N.I.C.K.
C. DJ
D. American Guitarist

3. What is something most users type before the question (when asking something)?
A. "Mooooo"
B. "no" or "yes"
C. "Poll:" or "Survey:"
D. "Quack"

4. Whats the minimum number of characters (letters) Yahoo suggests you type in a question?
A. 5 characters
B. 20 characters
C. 1828383 characters
D. -2 characters

5. What do you call someone who reports random questions, answers rudely and gives thumbs down to every answer?
A. Top Contributor
B. Frog
C. Yahoo! Staff
D. Troll

6. What happens when someone gives you "Best Answer"?
A. You lose 100 points
B. You get 10-12 points
C. You get suspended
D. Your computer explodes

7. Which best describes what you thought of this test?
A. Wtf did I just answer
B. Cool!
C. Please give me extra credit cause I didn't study!
D. F**k this sh*t!!!

Answer 1

1. Polls & Surveys is under what category?

C. Entertainment & Music



2. Who is the top answered of Polls & Surveys?

C. DJ



3. What is something most users type before the question (when asking something)?

C. "Poll:" or "Survey:"



4. Whats the minimum number of characters (letters) Yahoo suggests you type in a question?

B. 20 characters



5. What do you call someone who reports random questions, answers rudely and gives thumbs down to every answer?

D. Troll



6. What happens when someone gives you "Best Answer"?

B. You get 10-12 points



7. Which best describes what you thought of this test?

B. Cool!



And now...



IT'S PEANUT BUTTER JELLY TIME!

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................/............. ..........,„_„...|

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............../............... ....,-" ( . . o)_º)

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............|................. ...| . . . . . . . . . . . . . ,-~"~,

............|................. ...| . . . . . . . . . . . . . /:::::::\

............|................. ...| . . . . . . . . . . . . . |::::::::l

............|................. ...\ . . . ._ . . . . . . . . "-,„„„-"

.............|................ ...."-, . .(.."~,------------~"

.............|._.............. ......"~,.."~-'--- ,........... .......,--~~-,

..........,~" . ¯"~,...................¯"~~-", -\.............,-"-,"~, . ."-,

.......,-"....,~",-~"\.....-'. ,„„„.................."-,..... .....| . . "-, "-, . |

........\,,-",~"....../.....,- " . ."-,..............'-,."-,..... ...) . . . ."-,,-"

..........'-,........(,--,.,-" . . . . |................"-,"-,,("-~"- ,""~~~"

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Answer 2

1) C

2) C

3) C

4) B

5) D

6) B

7) A

Answer 3

1) C

2) C

3) C

4) B

5) D

6) B

7) A

Answer 4

1. C

2. A

3. C

4. B

5. D

6. B

7. C

Answer 5

1. A

2. C

3. C

4. B

5. D

6. B

7. B

Answer 6

1. Polls & Surveys is under what category?

c



2. Who is the top answered of Polls & Surveys?

d



3. What is something most users type before the question (when asking something)?

b



4. Whats the minimum number of characters (letters) Yahoo suggests you type in a question?

b



5. What do you call someone who reports random questions, answers rudely and gives thumbs down to every answer?

a



6. What happens when someone gives you "Best Answer"?

b



7. Which best describes what you thought of this test?

it was okay c;

Answer 7

1. C.

2. C.

3. C.

4. B.? :O

5. D.

6. B.

7. B.

.

Answer 8

1.C

2.D? uh B?

3.C!

4.D. But I could be wrong.

5.E. All of the above with the exception of A.

6.B, And then A.

7.C!!!



I took this test because I was afraid not to.

Answer 9

1. C.

2. C.

3. C. Although, B & C are both correct.

4. B.

5. D.

6. B.

7. B.

Answer 10

1.c

2.dj

3.c

4.b

5.D

6.b

7.c

Answer 11

1. c

2. c

3. c

4. b

5. d

6. b (I sometimes get more than 12 but close enough)

7. e (b.tch please, I owned this sh.t. I'm kidding but I don't think you needed to be an expert to answer)

Answer 12

C, C, C, B, D, none (you get 10 points plus 1 point for every thumbs up), B

Answer 13

Find area under curve of probability density function φ(x) = 1/√(2π) e^(-½x²)

which defines standard normal distribution.



First we find ∫[-∞..∞] e^(-x²) dx

Now since e^(-x²) is an even function, then:

I = ∫[-∞..∞] e^(-x²) dx

I = 2 ∫[0..∞] e^(-x²) dx

I² = 4 ∫[0..∞] e^(-x²) dx ∫[0..∞] e^(-x²) dx

I² = 4 ∫[0..∞] e^(-x²) dx ∫[0..∞] e^(-y²) dy



(Note: changing variable in integral will not change value of definite integral)

I² = 4 ∫[0..∞] ∫[0..∞] e^(-(x²+y²)) dy dx

I²/4 = ∫[0..∞] (∫[0..∞] e^(-(x²+y²)) dy) dx



Let y = xs . . . . . . . . . . when y = 0, s = 0

then dy = x ds . . . . . . . as y → ∞, s → ∞ (since x > 0)



I²/4 = ∫[0..∞] (∫[0..∞] e^(-(x²+x²s²)) x ds) dx

I²/4 = ∫[0..∞] (∫[0..∞] x e^(-x²(1+s²)) dx) ds

I²/4 = ∫[0..∞] (1/(-2(1+s²)) e^(-x²(1+s²))) |[0..∞] ds

I²/4 = ∫[0..∞] (0 - 1/(-2(1+s²))) ds

I²/4 = 1/2 ∫[0..∞] 1/(1+s²) ds

I²/4 = 1/2 arctan(s) |[0..∞] ds

I²/4 = 1/2 (arctan(∞) - arctan(0)) = 1/2 (π/2 - 0)

I²/4 = π/4

I² = π

I = √π



∫[-∞..∞] e^(-x²) dx = √π





Now we find ∫[-∞..∞] 1/√(2π) e^(-½x²) dx



Let u² = ½x²

u = x/√2

du = 1/√2 dx

As x → ±∞ then u → ±∞, so limits of integration do not change



∫[-∞..∞] 1/√(2π) e^(-½x²) dx

= 1/√π ∫[-∞..∞] 1/√2 e^(-½x²) dx

= 1/√π ∫[-∞..∞] e^(-u²) du

= 1/√π ∫√π

= √π/√π

= 1

Answer 14

C

C

C

B

D

B

C

Answer 15

What?

Answer 16

it's actually sad i know all they anwsers.

Answer 17

no

Answer 18

C.

C.

C.

B.

D.

B.

B.



♥