SOLUTION: Of all the trees planted by a landscaping firm, 70% survive. What is the probability that 12 or more of the 14 trees they just planted will survive? (use a binomial probabilities a

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Question 854681: Of all the trees planted by a landscaping firm, 70% survive. What is the probability that 12 or more of the 14 trees they just planted will survive? (use a binomial probabilities and give you answer correct to four decimal places.)

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

p = .70,  n = 14

Using TI: The syntax is 1 – binomcdf(n, p, largest x-value) when x≥ 12 

P(x ≥ 12) = 1 - binomcdf(14,.7, 11) = .44805

0r

Using: P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+ 

P(x ≥ 12) = P(12) + P(13) + P(14)