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Thread: What distribution is better in these situations?

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    What distribution is better in these situations?




    I'm new in statistics and probability and I'm a little lost about what distribution is better in these situations:
    • If a tumor is malignant or not --> Bernouilli
    • Number of entries in an emergency service during a night, know that on average 20 entries are observed per night. --> Poisson
    • Tumor size after extraction--> ????
    • Number of patients with a malignant tumor in groups of 15 patients-> ????

    Thanks in advance!!

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    Re: What distribution is better in these situations?

    I agree with the first two. The second may be approximate normal with average and sample size gets larger.


    Third seems to too vague, if it is random sample of sizes - normal distribution


    Fourth - Binomial?
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    Re: What distribution is better in these situations?

    Why Binomial the 4th?

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    Re: What distribution is better in these situations?


    Because I am stat stupid.Series of Bernoulli trials. That and it had not been used yet. I could easily be wrong though.


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