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  1. #1
    Poison's Avatar
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    Do my Stats HW 2$ per question

    @Niku ・( ̄∀ ̄)・
    Answers must be correct to receive the money.
    Show work

    1.
    The length of life of a washer is approximately normally distributed with mean of 3.1 years and a standard deviation of 1.2 years.?
    if this type of washer is guaranteed for one year what fraction of original sales will require replacement?


    2.
    The time it takes you to come to school is approximately normally distributed with a mean of 45 minutes and a standard deviation of 3minutes?
    what time must you leave home in the morning so that you are 95% sure of arriving at school b 9:00 AM

  2. #2
    Disturbed's Avatar
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    Way to have some integrity.


    You're going to fail your test, by the way.


  3. #3
    Poison's Avatar
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    Quote Originally Posted by Disturbed View Post
    Way to have some integrity.


    You're going to fail your test, by the way.
    I have an A in the class I aced my Midterm
    I just don't feel like doing homework I am doing a essay right now, procrastination dude partied to much this week

  4. #4
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    Quote Originally Posted by Disturbed View Post
    Way to have some integrity.


    You're going to fail your test, by the way.
    The way I read this made me laugh so hard just now

  5. #5
    Niku ・( ̄∀ ̄)・'s Avatar
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    lol . why me D: . but nvm then .
    1)μ = 3.1
    σ = 1.2
    standardize x to z = (x - μ) / σ
    P(x < 1) = P( z < (1-3.1) / 1.2)
    = P(z < -1.75) = 0.0401 ( 4 percent)
    (From Normal probability table)


    2)From the normal probability table, P( z < 1.645) = 0.95
    z = (x - μ) / σ
    1.645 = (x-45) / 3
    x = (3)(1.645) + 45
    x = 49.935
    You must leave 49.94 minutes before 9:00 AM (approximately 8:10 AM)

    wasn't that hard really . lol
    "Holding anger is a poison. It eats you from inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harms we do, we do to ourselves."-Mitch Albom

  6. The Following User Says Thank You to Niku ・( ̄∀ ̄)・ For This Useful Post:

    Poison (11-16-2014)

  7. #6
    Eternity's Avatar
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    Do you really give money for this questions?

  8. #7
    Poison's Avatar
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    Quote Originally Posted by xaviar View Post
    Do you really give money for this questions?
    yep last question i gave 5$

  9. #8
    Hachikuji's Avatar
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    Quote Originally Posted by xaviar View Post
    Do you really give money for this questions?
    no or that would be scamming. really how stupid can you be

  10. #9
    Auxilium's Avatar
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    somebody do my calculus homework for me

    it's over riemann sums and the Fundamental theorem of calculus.

  11. #10
    Auxilium's Avatar
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    edit: wow double post GG

  12. #11
    Eternity's Avatar
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    Quote Originally Posted by Kyeran View Post


    no or that would be scamming. really how stupid can you be
    I am sorry, I cannot help that I am stupid.

  13. #12
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    Quote Originally Posted by Auxilium View Post
    somebody do my calculus homework for me

    it's over riemann sums and the Fundamental theorem of calculus.
    If you pay me. I'm learning calc bc right now.
    FTC and Reimann sums aren't that bad.

  14. #13
    Eternity's Avatar
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    Quote Originally Posted by TheEnlightenedOne View Post


    If you pay me. I'm learning calc bc right now.
    FTC and Reimann sums aren't that bad.
    If you do it make sure that your proficient.

  15. #14
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    Quote Originally Posted by xaviar View Post

    If you do it make sure that your proficient.
    you're.
    I'm also pretty good at grammar.

  16. #15
    Eternity's Avatar
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    Quote Originally Posted by TheEnlightenedOne View Post


    you're.
    I'm also pretty good at grammar.
    Hahaha. That is great. I just wanted to make sure.

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