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Confucious

  • 4 years ago

Can someone please help me with this? I am getting absolutely nowhere. How easy is it to contact a person in Sacramento, California? If you don't know the telephone number, it could be difficult. It was reported that 66% of the telephone-owning households in Sacramento have unlisted numbers. For a random sample of 146 Sacramento households with telephones, what is the probability of the following. (Round μ to the nearest integer, σ to 4 decimal places.) (a) 100 or more have unlisted numbers (b) fewer than 100 have unlisted numbers (c) between 50 and 65(including 50 and 65) have listed #s

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  1. Confucious
    • 4 years ago
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    use 4 decimal places

  2. roadjester
    • 4 years ago
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    Is this a guassian distribution?

  3. Confucious
    • 4 years ago
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    yh, it's under that topic, although the question doesn't mention a type of distribution

  4. roadjester
    • 4 years ago
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    @Hero It's a statistics question...well from what I can tell. I think that's why there are numbers. I am not good at statistics however but there is a statistics study group.

  5. roadjester
    • 4 years ago
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    I believe Hero interpreted your question literally.

  6. Hero
    • 4 years ago
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    I know what kind of question it is.

  7. roadjester
    • 4 years ago
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    And I don't think the sarcasm is appreciated. I certainly wouldn't. This isn't a place for jokes or mockery.

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