(i) It was thought that 32% of people preferred Pepsi to Coke. Thirty-five people participated in a Pepsi versus Coke taste test. Each person was given two samples and asked to say which they preferred. a) Is this a binomial situation? What are the properties of the binomial distribution? b) What is the expected number of participants preferring Pepsi? c) What is the variance of the distribution?
Added by Cheryl D.
Step 1
The properties of the binomial distribution include having a fixed number of trials, each trial having two possible outcomes, a constant probability of success, and independence between trials. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Rabia Sarwar and 71 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A recent taste test established that 65 % of cola drinkers prefer the taste of Coke to that of Pepsi. In a sample of 127 cola drinkers, find the probability that: a) at most 39 of them prefer the taste of Coke. b) between 29 and 39 of them prefer the taste of Coke.
Rabia S.
Suppose 60 percent of all people prefer Coke to Pepsi. We select 18 people for further study. a. How many would you expect to prefer Coke? b. What is the probability 10 of those surveyed will prefer Coke? c. What is the probability 15 prefer Coke?
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD