Question 519150
A forest ranger estimates that 50% of the deer in her park carry a certain type of tick.
For a sample of 300 deer selected at random, what is the chance that 155 or fewer deer have this tick?
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Binomial Problem with n = 300 and p(carry tick) = 0.50
P(0<= x <=155) = binomcdf(300,0.5,155) = 0.737
Cheers,
Stan H.
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A) 0.737
B) 0.263
C) 0.864
D) 0.475