Question 742200
A biologist estimates that 70% of deer in the region carry a certain type of tick. For a sample of 300 deer selected at random, what is the chance that 216 or fewer deer have this tick? 
Binomial Problem with n = 300 and p(tick) = 0.7
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P(0<= x <=216) = binomcdf(300,0.7,215) = 0.7455

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Cheers,
Stan H.