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Survey on Bathing Pets A survey found that 25% of pet
Chapter 5, Problem 25E(choose chapter or problem)
Survey on Bathing Pets A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are randomly selected, find the probability that exactly 5 people have their pets bathed professionally.
Questions & Answers
QUESTION:
Survey on Bathing Pets A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are randomly selected, find the probability that exactly 5 people have their pets bathed professionally.
ANSWER:
Step 1 of 2
Let n denotes the total pet owners is 18.
Let p denotes the 25% or 0.25 of pet owners had their pets bathed.
We need to find q value.
q = 1-p
q = 1-0.25
q = 0.75
Hence, q=0.75.
Then the binomial distribution formula is
P(X) =
Where, n=18, p=0.25, and q=0.75.