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Math Help - binomial distribution, check answer please

  1. #1
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    Question binomial distribution, check answer please

    In a binomial distribution, the probability of 25 successes, where n=65 and p=0.35 is ____.

    P(x=25)=C(25,65)(0.35)^25
    answer C(65,25)(0.35)^25(0.15)^40. thanks for checking. list of possible answers are -

    1. C(65,25)(0.35)^25(0.15)^40
    2. C(65,25)(0.35)^25(0.65)^40
    3. C(65,25)(0.35)^40(0.65)^25
    4. C(65,25)(0.35)^25
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  2. #2
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    _{65}C_{25}(.35)^{25}(.65)^{40}\approx .08
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  3. #3
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    Smile thanks

    thanks you i got it now.
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