1. A survey from Veterinary Research Unlimited found that 80% of dogs do not have chronic ear infections. Suppose 8 dogs are selected at random: a. What is the mean and standard deviation of this distribution (Hint: binomial)? b. What is the probability that exactly 3 will not have chronic ear infections. C. at least two of them will not have chronic ear infections.
1. A survey from Veterinary Research Unlimited found that 80% of dogs do not have chronic ear infections. Suppose 8 dogs are selected at random: a. What is the mean and standard deviation of this distribution (Hint: binomial)? b. What is the probability that exactly 3 will not have chronic ear infections. C. at least two of them will not have chronic ear infections.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:1. A survey from Veterinary Research Unlimited found that 80% of dogs do not have
chronic ear infections. Suppose 8 dogs are selected at random:
a. What is the mean and standard deviation of this distribution (Hint: binomial)?
b. What is the probability that exactly 3 will not have chronic ear infections.
C.
at least two of them will not have chronic ear infections.
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