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Math Help - Binominal probability, one task only: )

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    Binominal probability, one task only: )

    A type of seed has 80% chance to bloom. You plant 250 seeds.
    Whats the probability for at least 210 to bloom?




    sorry for english, not mother tongue
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    Quote Originally Posted by Mantraz View Post
    A type of seed has 80% chance to bloom. You plant 250 seeds.
    Whats the probability for at least 210 to bloom?




    sorry for english, not mother tongue
    Let X be the random variable number of seeds that bloom.

    X ~ Binomial(n = 250, p = 0.8)

    Calculate \Pr(X \geq 210).

    This can be easily found using technology.

    Alternatively, the normal approximation can be used (why?).
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    Thanks alot: )
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